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Message-Id: <20200831180749.843-19-paulmck@kernel.org>
Date: Mon, 31 Aug 2020 11:07:49 -0700
From: paulmck@...nel.org
To: rcu@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
jiangshanlai@...il.com, dipankar@...ibm.com,
akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org,
"Paul E. McKenney" <paulmck@...nel.org>
Subject: [PATCH tip/core/rcu 19/19] rcuperf: Change rcuperf to rcuscale
From: "Paul E. McKenney" <paulmck@...nel.org>
This commit further avoids conflation of rcuperf with the kernel's perf
feature by renaming kernel/rcu/rcuperf.c to kernel/rcu/rcuscale.c, and
also by similarly renaming the functions and variables inside this file.
This has the side effect of changing the names of the kernel boot
parameters, so kernel-parameters.txt and ver_functions.sh are also
updated. The rcutorture --torture type was also updated from rcuperf
to rcuscale.
[ paulmck: Fix bugs located by Stephen Rothwell. ]
Reported-by: Ingo Molnar <mingo@...nel.org>
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
Documentation/admin-guide/kernel-parameters.txt | 36 +--
MAINTAINERS | 3 +-
kernel/rcu/Kconfig.debug | 2 +-
kernel/rcu/Makefile | 2 +-
kernel/rcu/{rcuperf.c => rcuscale.c} | 330 ++++++++++-----------
...rf-ftrace.sh => kvm-recheck-rcuscale-ftrace.sh} | 6 +-
...-recheck-rcuperf.sh => kvm-recheck-rcuscale.sh} | 14 +-
tools/testing/selftests/rcutorture/bin/kvm.sh | 8 +-
.../selftests/rcutorture/bin/parse-console.sh | 4 +-
.../selftests/rcutorture/configs/rcuperf/CFcommon | 2 -
.../configs/{rcuperf => rcuscale}/CFLIST | 0
.../selftests/rcutorture/configs/rcuscale/CFcommon | 2 +
.../rcutorture/configs/{rcuperf => rcuscale}/TINY | 0
.../rcutorture/configs/{rcuperf => rcuscale}/TREE | 0
.../configs/{rcuperf => rcuscale}/TREE54 | 0
.../configs/{rcuperf => rcuscale}/ver_functions.sh | 4 +-
16 files changed, 207 insertions(+), 206 deletions(-)
rename kernel/rcu/{rcuperf.c => rcuscale.c} (64%)
rename tools/testing/selftests/rcutorture/bin/{kvm-recheck-rcuperf-ftrace.sh => kvm-recheck-rcuscale-ftrace.sh} (92%)
rename tools/testing/selftests/rcutorture/bin/{kvm-recheck-rcuperf.sh => kvm-recheck-rcuscale.sh} (84%)
delete mode 100644 tools/testing/selftests/rcutorture/configs/rcuperf/CFcommon
rename tools/testing/selftests/rcutorture/configs/{rcuperf => rcuscale}/CFLIST (100%)
create mode 100644 tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon
rename tools/testing/selftests/rcutorture/configs/{rcuperf => rcuscale}/TINY (100%)
rename tools/testing/selftests/rcutorture/configs/{rcuperf => rcuscale}/TREE (100%)
rename tools/testing/selftests/rcutorture/configs/{rcuperf => rcuscale}/TREE54 (100%)
rename tools/testing/selftests/rcutorture/configs/{rcuperf => rcuscale}/ver_functions.sh (88%)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 91a5638..c27bbe9 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4157,41 +4157,41 @@
rcu_node tree with an eye towards determining
why a new grace period has not yet started.
- rcuperf.gp_async= [KNL]
+ rcuscale.gp_async= [KNL]
Measure performance of asynchronous
grace-period primitives such as call_rcu().
- rcuperf.gp_async_max= [KNL]
+ rcuscale.gp_async_max= [KNL]
Specify the maximum number of outstanding
callbacks per writer thread. When a writer
thread exceeds this limit, it invokes the
corresponding flavor of rcu_barrier() to allow
previously posted callbacks to drain.
- rcuperf.gp_exp= [KNL]
+ rcuscale.gp_exp= [KNL]
Measure performance of expedited synchronous
grace-period primitives.
- rcuperf.holdoff= [KNL]
+ rcuscale.holdoff= [KNL]
Set test-start holdoff period. The purpose of
this parameter is to delay the start of the
test until boot completes in order to avoid
interference.
- rcuperf.kfree_rcu_test= [KNL]
+ rcuscale.kfree_rcu_test= [KNL]
Set to measure performance of kfree_rcu() flooding.
- rcuperf.kfree_nthreads= [KNL]
+ rcuscale.kfree_nthreads= [KNL]
The number of threads running loops of kfree_rcu().
- rcuperf.kfree_alloc_num= [KNL]
+ rcuscale.kfree_alloc_num= [KNL]
Number of allocations and frees done in an iteration.
- rcuperf.kfree_loops= [KNL]
- Number of loops doing rcuperf.kfree_alloc_num number
+ rcuscale.kfree_loops= [KNL]
+ Number of loops doing rcuscale.kfree_alloc_num number
of allocations and frees.
- rcuperf.nreaders= [KNL]
+ rcuscale.nreaders= [KNL]
Set number of RCU readers. The value -1 selects
N, where N is the number of CPUs. A value
"n" less than -1 selects N-n+1, where N is again
@@ -4200,23 +4200,23 @@
A value of "n" less than or equal to -N selects
a single reader.
- rcuperf.nwriters= [KNL]
+ rcuscale.nwriters= [KNL]
Set number of RCU writers. The values operate
- the same as for rcuperf.nreaders.
+ the same as for rcuscale.nreaders.
N, where N is the number of CPUs
- rcuperf.perf_type= [KNL]
+ rcuscale.perf_type= [KNL]
Specify the RCU implementation to test.
- rcuperf.shutdown= [KNL]
+ rcuscale.shutdown= [KNL]
Shut the system down after performance tests
complete. This is useful for hands-off automated
testing.
- rcuperf.verbose= [KNL]
+ rcuscale.verbose= [KNL]
Enable additional printk() statements.
- rcuperf.writer_holdoff= [KNL]
+ rcuscale.writer_holdoff= [KNL]
Write-side holdoff between grace periods,
in microseconds. The default of zero says
no holdoff.
@@ -4490,8 +4490,8 @@
refscale.shutdown= [KNL]
Shut down the system at the end of the performance
test. This defaults to 1 (shut it down) when
- rcuperf is built into the kernel and to 0 (leave
- it running) when rcuperf is built as a module.
+ refscale is built into the kernel and to 0 (leave
+ it running) when refscale is built as a module.
refscale.verbose= [KNL]
Enable additional printk() statements.
diff --git a/MAINTAINERS b/MAINTAINERS
index deaafb6..d299e3b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -17510,8 +17510,9 @@ S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev
F: Documentation/RCU/torture.rst
F: kernel/locking/locktorture.c
-F: kernel/rcu/rcuperf.c
+F: kernel/rcu/rcuscale.c
F: kernel/rcu/rcutorture.c
+F: kernel/rcu/refscale.c
F: kernel/torture.c
TOSHIBA ACPI EXTRAS DRIVER
diff --git a/kernel/rcu/Kconfig.debug b/kernel/rcu/Kconfig.debug
index 3cf6132..5cb175d 100644
--- a/kernel/rcu/Kconfig.debug
+++ b/kernel/rcu/Kconfig.debug
@@ -23,7 +23,7 @@ config TORTURE_TEST
tristate
default n
-config RCU_PERF_TEST
+config RCU_SCALE_TEST
tristate "performance tests for RCU"
depends on DEBUG_KERNEL
select TORTURE_TEST
diff --git a/kernel/rcu/Makefile b/kernel/rcu/Makefile
index 95f5117..0cfb009 100644
--- a/kernel/rcu/Makefile
+++ b/kernel/rcu/Makefile
@@ -11,7 +11,7 @@ obj-y += update.o sync.o
obj-$(CONFIG_TREE_SRCU) += srcutree.o
obj-$(CONFIG_TINY_SRCU) += srcutiny.o
obj-$(CONFIG_RCU_TORTURE_TEST) += rcutorture.o
-obj-$(CONFIG_RCU_PERF_TEST) += rcuperf.o
+obj-$(CONFIG_RCU_SCALE_TEST) += rcuscale.o
obj-$(CONFIG_RCU_REF_SCALE_TEST) += refscale.o
obj-$(CONFIG_TREE_RCU) += tree.o
obj-$(CONFIG_TINY_RCU) += tiny.o
diff --git a/kernel/rcu/rcuperf.c b/kernel/rcu/rcuscale.c
similarity index 64%
rename from kernel/rcu/rcuperf.c
rename to kernel/rcu/rcuscale.c
index 21448d3..2819b95 100644
--- a/kernel/rcu/rcuperf.c
+++ b/kernel/rcu/rcuscale.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0+
/*
- * Read-Copy Update module-based performance-test facility
+ * Read-Copy Update module-based scalability-test facility
*
* Copyright (C) IBM Corporation, 2015
*
@@ -44,13 +44,13 @@
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Paul E. McKenney <paulmck@...ux.ibm.com>");
-#define PERF_FLAG "-perf:"
-#define PERFOUT_STRING(s) \
- pr_alert("%s" PERF_FLAG " %s\n", perf_type, s)
-#define VERBOSE_PERFOUT_STRING(s) \
- do { if (verbose) pr_alert("%s" PERF_FLAG " %s\n", perf_type, s); } while (0)
-#define VERBOSE_PERFOUT_ERRSTRING(s) \
- do { if (verbose) pr_alert("%s" PERF_FLAG "!!! %s\n", perf_type, s); } while (0)
+#define SCALE_FLAG "-scale:"
+#define SCALEOUT_STRING(s) \
+ pr_alert("%s" SCALE_FLAG " %s\n", scale_type, s)
+#define VERBOSE_SCALEOUT_STRING(s) \
+ do { if (verbose) pr_alert("%s" SCALE_FLAG " %s\n", scale_type, s); } while (0)
+#define VERBOSE_SCALEOUT_ERRSTRING(s) \
+ do { if (verbose) pr_alert("%s" SCALE_FLAG "!!! %s\n", scale_type, s); } while (0)
/*
* The intended use cases for the nreaders and nwriters module parameters
@@ -61,25 +61,25 @@ MODULE_AUTHOR("Paul E. McKenney <paulmck@...ux.ibm.com>");
* nr_cpus for a mixed reader/writer test.
*
* 2. Specify the nr_cpus kernel boot parameter, but set
- * rcuperf.nreaders to zero. This will set nwriters to the
+ * rcuscale.nreaders to zero. This will set nwriters to the
* value specified by nr_cpus for an update-only test.
*
* 3. Specify the nr_cpus kernel boot parameter, but set
- * rcuperf.nwriters to zero. This will set nreaders to the
+ * rcuscale.nwriters to zero. This will set nreaders to the
* value specified by nr_cpus for a read-only test.
*
* Various other use cases may of course be specified.
*
* Note that this test's readers are intended only as a test load for
- * the writers. The reader performance statistics will be overly
+ * the writers. The reader scalability statistics will be overly
* pessimistic due to the per-critical-section interrupt disabling,
* test-end checks, and the pair of calls through pointers.
*/
#ifdef MODULE
-# define RCUPERF_SHUTDOWN 0
+# define RCUSCALE_SHUTDOWN 0
#else
-# define RCUPERF_SHUTDOWN 1
+# define RCUSCALE_SHUTDOWN 1
#endif
torture_param(bool, gp_async, false, "Use asynchronous GP wait primitives");
@@ -88,16 +88,16 @@ torture_param(bool, gp_exp, false, "Use expedited GP wait primitives");
torture_param(int, holdoff, 10, "Holdoff time before test start (s)");
torture_param(int, nreaders, -1, "Number of RCU reader threads");
torture_param(int, nwriters, -1, "Number of RCU updater threads");
-torture_param(bool, shutdown, RCUPERF_SHUTDOWN,
- "Shutdown at end of performance tests.");
+torture_param(bool, shutdown, RCUSCALE_SHUTDOWN,
+ "Shutdown at end of scalability tests.");
torture_param(int, verbose, 1, "Enable verbose debugging printk()s");
torture_param(int, writer_holdoff, 0, "Holdoff (us) between GPs, zero to disable");
-torture_param(int, kfree_rcu_test, 0, "Do we run a kfree_rcu() perf test?");
+torture_param(int, kfree_rcu_test, 0, "Do we run a kfree_rcu() scale test?");
torture_param(int, kfree_mult, 1, "Multiple of kfree_obj size to allocate.");
-static char *perf_type = "rcu";
-module_param(perf_type, charp, 0444);
-MODULE_PARM_DESC(perf_type, "Type of RCU to performance-test (rcu, srcu, ...)");
+static char *scale_type = "rcu";
+module_param(scale_type, charp, 0444);
+MODULE_PARM_DESC(scale_type, "Type of RCU to scalability-test (rcu, srcu, ...)");
static int nrealreaders;
static int nrealwriters;
@@ -107,12 +107,12 @@ static struct task_struct *shutdown_task;
static u64 **writer_durations;
static int *writer_n_durations;
-static atomic_t n_rcu_perf_reader_started;
-static atomic_t n_rcu_perf_writer_started;
-static atomic_t n_rcu_perf_writer_finished;
+static atomic_t n_rcu_scale_reader_started;
+static atomic_t n_rcu_scale_writer_started;
+static atomic_t n_rcu_scale_writer_finished;
static wait_queue_head_t shutdown_wq;
-static u64 t_rcu_perf_writer_started;
-static u64 t_rcu_perf_writer_finished;
+static u64 t_rcu_scale_writer_started;
+static u64 t_rcu_scale_writer_finished;
static unsigned long b_rcu_gp_test_started;
static unsigned long b_rcu_gp_test_finished;
static DEFINE_PER_CPU(atomic_t, n_async_inflight);
@@ -124,7 +124,7 @@ static DEFINE_PER_CPU(atomic_t, n_async_inflight);
* Operations vector for selecting different types of tests.
*/
-struct rcu_perf_ops {
+struct rcu_scale_ops {
int ptype;
void (*init)(void);
void (*cleanup)(void);
@@ -140,19 +140,19 @@ struct rcu_perf_ops {
const char *name;
};
-static struct rcu_perf_ops *cur_ops;
+static struct rcu_scale_ops *cur_ops;
/*
- * Definitions for rcu perf testing.
+ * Definitions for rcu scalability testing.
*/
-static int rcu_perf_read_lock(void) __acquires(RCU)
+static int rcu_scale_read_lock(void) __acquires(RCU)
{
rcu_read_lock();
return 0;
}
-static void rcu_perf_read_unlock(int idx) __releases(RCU)
+static void rcu_scale_read_unlock(int idx) __releases(RCU)
{
rcu_read_unlock();
}
@@ -162,15 +162,15 @@ static unsigned long __maybe_unused rcu_no_completed(void)
return 0;
}
-static void rcu_sync_perf_init(void)
+static void rcu_sync_scale_init(void)
{
}
-static struct rcu_perf_ops rcu_ops = {
+static struct rcu_scale_ops rcu_ops = {
.ptype = RCU_FLAVOR,
- .init = rcu_sync_perf_init,
- .readlock = rcu_perf_read_lock,
- .readunlock = rcu_perf_read_unlock,
+ .init = rcu_sync_scale_init,
+ .readlock = rcu_scale_read_lock,
+ .readunlock = rcu_scale_read_unlock,
.get_gp_seq = rcu_get_gp_seq,
.gp_diff = rcu_seq_diff,
.exp_completed = rcu_exp_batches_completed,
@@ -182,23 +182,23 @@ static struct rcu_perf_ops rcu_ops = {
};
/*
- * Definitions for srcu perf testing.
+ * Definitions for srcu scalability testing.
*/
-DEFINE_STATIC_SRCU(srcu_ctl_perf);
-static struct srcu_struct *srcu_ctlp = &srcu_ctl_perf;
+DEFINE_STATIC_SRCU(srcu_ctl_scale);
+static struct srcu_struct *srcu_ctlp = &srcu_ctl_scale;
-static int srcu_perf_read_lock(void) __acquires(srcu_ctlp)
+static int srcu_scale_read_lock(void) __acquires(srcu_ctlp)
{
return srcu_read_lock(srcu_ctlp);
}
-static void srcu_perf_read_unlock(int idx) __releases(srcu_ctlp)
+static void srcu_scale_read_unlock(int idx) __releases(srcu_ctlp)
{
srcu_read_unlock(srcu_ctlp, idx);
}
-static unsigned long srcu_perf_completed(void)
+static unsigned long srcu_scale_completed(void)
{
return srcu_batches_completed(srcu_ctlp);
}
@@ -213,78 +213,78 @@ static void srcu_rcu_barrier(void)
srcu_barrier(srcu_ctlp);
}
-static void srcu_perf_synchronize(void)
+static void srcu_scale_synchronize(void)
{
synchronize_srcu(srcu_ctlp);
}
-static void srcu_perf_synchronize_expedited(void)
+static void srcu_scale_synchronize_expedited(void)
{
synchronize_srcu_expedited(srcu_ctlp);
}
-static struct rcu_perf_ops srcu_ops = {
+static struct rcu_scale_ops srcu_ops = {
.ptype = SRCU_FLAVOR,
- .init = rcu_sync_perf_init,
- .readlock = srcu_perf_read_lock,
- .readunlock = srcu_perf_read_unlock,
- .get_gp_seq = srcu_perf_completed,
+ .init = rcu_sync_scale_init,
+ .readlock = srcu_scale_read_lock,
+ .readunlock = srcu_scale_read_unlock,
+ .get_gp_seq = srcu_scale_completed,
.gp_diff = rcu_seq_diff,
- .exp_completed = srcu_perf_completed,
+ .exp_completed = srcu_scale_completed,
.async = srcu_call_rcu,
.gp_barrier = srcu_rcu_barrier,
- .sync = srcu_perf_synchronize,
- .exp_sync = srcu_perf_synchronize_expedited,
+ .sync = srcu_scale_synchronize,
+ .exp_sync = srcu_scale_synchronize_expedited,
.name = "srcu"
};
static struct srcu_struct srcud;
-static void srcu_sync_perf_init(void)
+static void srcu_sync_scale_init(void)
{
srcu_ctlp = &srcud;
init_srcu_struct(srcu_ctlp);
}
-static void srcu_sync_perf_cleanup(void)
+static void srcu_sync_scale_cleanup(void)
{
cleanup_srcu_struct(srcu_ctlp);
}
-static struct rcu_perf_ops srcud_ops = {
+static struct rcu_scale_ops srcud_ops = {
.ptype = SRCU_FLAVOR,
- .init = srcu_sync_perf_init,
- .cleanup = srcu_sync_perf_cleanup,
- .readlock = srcu_perf_read_lock,
- .readunlock = srcu_perf_read_unlock,
- .get_gp_seq = srcu_perf_completed,
+ .init = srcu_sync_scale_init,
+ .cleanup = srcu_sync_scale_cleanup,
+ .readlock = srcu_scale_read_lock,
+ .readunlock = srcu_scale_read_unlock,
+ .get_gp_seq = srcu_scale_completed,
.gp_diff = rcu_seq_diff,
- .exp_completed = srcu_perf_completed,
+ .exp_completed = srcu_scale_completed,
.async = srcu_call_rcu,
.gp_barrier = srcu_rcu_barrier,
- .sync = srcu_perf_synchronize,
- .exp_sync = srcu_perf_synchronize_expedited,
+ .sync = srcu_scale_synchronize,
+ .exp_sync = srcu_scale_synchronize_expedited,
.name = "srcud"
};
/*
- * Definitions for RCU-tasks perf testing.
+ * Definitions for RCU-tasks scalability testing.
*/
-static int tasks_perf_read_lock(void)
+static int tasks_scale_read_lock(void)
{
return 0;
}
-static void tasks_perf_read_unlock(int idx)
+static void tasks_scale_read_unlock(int idx)
{
}
-static struct rcu_perf_ops tasks_ops = {
+static struct rcu_scale_ops tasks_ops = {
.ptype = RCU_TASKS_FLAVOR,
- .init = rcu_sync_perf_init,
- .readlock = tasks_perf_read_lock,
- .readunlock = tasks_perf_read_unlock,
+ .init = rcu_sync_scale_init,
+ .readlock = tasks_scale_read_lock,
+ .readunlock = tasks_scale_read_unlock,
.get_gp_seq = rcu_no_completed,
.gp_diff = rcu_seq_diff,
.async = call_rcu_tasks,
@@ -294,7 +294,7 @@ static struct rcu_perf_ops tasks_ops = {
.name = "tasks"
};
-static unsigned long rcuperf_seq_diff(unsigned long new, unsigned long old)
+static unsigned long rcuscale_seq_diff(unsigned long new, unsigned long old)
{
if (!cur_ops->gp_diff)
return new - old;
@@ -302,60 +302,60 @@ static unsigned long rcuperf_seq_diff(unsigned long new, unsigned long old)
}
/*
- * If performance tests complete, wait for shutdown to commence.
+ * If scalability tests complete, wait for shutdown to commence.
*/
-static void rcu_perf_wait_shutdown(void)
+static void rcu_scale_wait_shutdown(void)
{
cond_resched_tasks_rcu_qs();
- if (atomic_read(&n_rcu_perf_writer_finished) < nrealwriters)
+ if (atomic_read(&n_rcu_scale_writer_finished) < nrealwriters)
return;
while (!torture_must_stop())
schedule_timeout_uninterruptible(1);
}
/*
- * RCU perf reader kthread. Repeatedly does empty RCU read-side critical
- * section, minimizing update-side interference. However, the point of
- * this test is not to evaluate reader performance, but instead to serve
- * as a test load for update-side performance testing.
+ * RCU scalability reader kthread. Repeatedly does empty RCU read-side
+ * critical section, minimizing update-side interference. However, the
+ * point of this test is not to evaluate reader scalability, but instead
+ * to serve as a test load for update-side scalability testing.
*/
static int
-rcu_perf_reader(void *arg)
+rcu_scale_reader(void *arg)
{
unsigned long flags;
int idx;
long me = (long)arg;
- VERBOSE_PERFOUT_STRING("rcu_perf_reader task started");
+ VERBOSE_SCALEOUT_STRING("rcu_scale_reader task started");
set_cpus_allowed_ptr(current, cpumask_of(me % nr_cpu_ids));
set_user_nice(current, MAX_NICE);
- atomic_inc(&n_rcu_perf_reader_started);
+ atomic_inc(&n_rcu_scale_reader_started);
do {
local_irq_save(flags);
idx = cur_ops->readlock();
cur_ops->readunlock(idx);
local_irq_restore(flags);
- rcu_perf_wait_shutdown();
+ rcu_scale_wait_shutdown();
} while (!torture_must_stop());
- torture_kthread_stopping("rcu_perf_reader");
+ torture_kthread_stopping("rcu_scale_reader");
return 0;
}
/*
- * Callback function for asynchronous grace periods from rcu_perf_writer().
+ * Callback function for asynchronous grace periods from rcu_scale_writer().
*/
-static void rcu_perf_async_cb(struct rcu_head *rhp)
+static void rcu_scale_async_cb(struct rcu_head *rhp)
{
atomic_dec(this_cpu_ptr(&n_async_inflight));
kfree(rhp);
}
/*
- * RCU perf writer kthread. Repeatedly does a grace period.
+ * RCU scale writer kthread. Repeatedly does a grace period.
*/
static int
-rcu_perf_writer(void *arg)
+rcu_scale_writer(void *arg)
{
int i = 0;
int i_max;
@@ -366,7 +366,7 @@ rcu_perf_writer(void *arg)
u64 *wdp;
u64 *wdpp = writer_durations[me];
- VERBOSE_PERFOUT_STRING("rcu_perf_writer task started");
+ VERBOSE_SCALEOUT_STRING("rcu_scale_writer task started");
WARN_ON(!wdpp);
set_cpus_allowed_ptr(current, cpumask_of(me % nr_cpu_ids));
sched_set_fifo_low(current);
@@ -383,8 +383,8 @@ rcu_perf_writer(void *arg)
schedule_timeout_uninterruptible(1);
t = ktime_get_mono_fast_ns();
- if (atomic_inc_return(&n_rcu_perf_writer_started) >= nrealwriters) {
- t_rcu_perf_writer_started = t;
+ if (atomic_inc_return(&n_rcu_scale_writer_started) >= nrealwriters) {
+ t_rcu_scale_writer_started = t;
if (gp_exp) {
b_rcu_gp_test_started =
cur_ops->exp_completed() / 2;
@@ -404,7 +404,7 @@ rcu_perf_writer(void *arg)
rhp = kmalloc(sizeof(*rhp), GFP_KERNEL);
if (rhp && atomic_read(this_cpu_ptr(&n_async_inflight)) < gp_async_max) {
atomic_inc(this_cpu_ptr(&n_async_inflight));
- cur_ops->async(rhp, rcu_perf_async_cb);
+ cur_ops->async(rhp, rcu_scale_async_cb);
rhp = NULL;
} else if (!kthread_should_stop()) {
cur_ops->gp_barrier();
@@ -421,19 +421,19 @@ rcu_perf_writer(void *arg)
*wdp = t - *wdp;
i_max = i;
if (!started &&
- atomic_read(&n_rcu_perf_writer_started) >= nrealwriters)
+ atomic_read(&n_rcu_scale_writer_started) >= nrealwriters)
started = true;
if (!done && i >= MIN_MEAS) {
done = true;
sched_set_normal(current, 0);
- pr_alert("%s%s rcu_perf_writer %ld has %d measurements\n",
- perf_type, PERF_FLAG, me, MIN_MEAS);
- if (atomic_inc_return(&n_rcu_perf_writer_finished) >=
+ pr_alert("%s%s rcu_scale_writer %ld has %d measurements\n",
+ scale_type, SCALE_FLAG, me, MIN_MEAS);
+ if (atomic_inc_return(&n_rcu_scale_writer_finished) >=
nrealwriters) {
schedule_timeout_interruptible(10);
rcu_ftrace_dump(DUMP_ALL);
- PERFOUT_STRING("Test complete");
- t_rcu_perf_writer_finished = t;
+ SCALEOUT_STRING("Test complete");
+ t_rcu_scale_writer_finished = t;
if (gp_exp) {
b_rcu_gp_test_finished =
cur_ops->exp_completed() / 2;
@@ -448,30 +448,30 @@ rcu_perf_writer(void *arg)
}
}
if (done && !alldone &&
- atomic_read(&n_rcu_perf_writer_finished) >= nrealwriters)
+ atomic_read(&n_rcu_scale_writer_finished) >= nrealwriters)
alldone = true;
if (started && !alldone && i < MAX_MEAS - 1)
i++;
- rcu_perf_wait_shutdown();
+ rcu_scale_wait_shutdown();
} while (!torture_must_stop());
if (gp_async) {
cur_ops->gp_barrier();
}
writer_n_durations[me] = i_max;
- torture_kthread_stopping("rcu_perf_writer");
+ torture_kthread_stopping("rcu_scale_writer");
return 0;
}
static void
-rcu_perf_print_module_parms(struct rcu_perf_ops *cur_ops, const char *tag)
+rcu_scale_print_module_parms(struct rcu_scale_ops *cur_ops, const char *tag)
{
- pr_alert("%s" PERF_FLAG
+ pr_alert("%s" SCALE_FLAG
"--- %s: nreaders=%d nwriters=%d verbose=%d shutdown=%d\n",
- perf_type, tag, nrealreaders, nrealwriters, verbose, shutdown);
+ scale_type, tag, nrealreaders, nrealwriters, verbose, shutdown);
}
static void
-rcu_perf_cleanup(void)
+rcu_scale_cleanup(void)
{
int i;
int j;
@@ -484,11 +484,11 @@ rcu_perf_cleanup(void)
* during the mid-boot phase, so have to wait till the end.
*/
if (rcu_gp_is_expedited() && !rcu_gp_is_normal() && !gp_exp)
- VERBOSE_PERFOUT_ERRSTRING("All grace periods expedited, no normal ones to measure!");
+ VERBOSE_SCALEOUT_ERRSTRING("All grace periods expedited, no normal ones to measure!");
if (rcu_gp_is_normal() && gp_exp)
- VERBOSE_PERFOUT_ERRSTRING("All grace periods normal, no expedited ones to measure!");
+ VERBOSE_SCALEOUT_ERRSTRING("All grace periods normal, no expedited ones to measure!");
if (gp_exp && gp_async)
- VERBOSE_PERFOUT_ERRSTRING("No expedited async GPs, so went with async!");
+ VERBOSE_SCALEOUT_ERRSTRING("No expedited async GPs, so went with async!");
if (torture_cleanup_begin())
return;
@@ -499,30 +499,30 @@ rcu_perf_cleanup(void)
if (reader_tasks) {
for (i = 0; i < nrealreaders; i++)
- torture_stop_kthread(rcu_perf_reader,
+ torture_stop_kthread(rcu_scale_reader,
reader_tasks[i]);
kfree(reader_tasks);
}
if (writer_tasks) {
for (i = 0; i < nrealwriters; i++) {
- torture_stop_kthread(rcu_perf_writer,
+ torture_stop_kthread(rcu_scale_writer,
writer_tasks[i]);
if (!writer_n_durations)
continue;
j = writer_n_durations[i];
pr_alert("%s%s writer %d gps: %d\n",
- perf_type, PERF_FLAG, i, j);
+ scale_type, SCALE_FLAG, i, j);
ngps += j;
}
pr_alert("%s%s start: %llu end: %llu duration: %llu gps: %d batches: %ld\n",
- perf_type, PERF_FLAG,
- t_rcu_perf_writer_started, t_rcu_perf_writer_finished,
- t_rcu_perf_writer_finished -
- t_rcu_perf_writer_started,
+ scale_type, SCALE_FLAG,
+ t_rcu_scale_writer_started, t_rcu_scale_writer_finished,
+ t_rcu_scale_writer_finished -
+ t_rcu_scale_writer_started,
ngps,
- rcuperf_seq_diff(b_rcu_gp_test_finished,
- b_rcu_gp_test_started));
+ rcuscale_seq_diff(b_rcu_gp_test_finished,
+ b_rcu_gp_test_started));
for (i = 0; i < nrealwriters; i++) {
if (!writer_durations)
break;
@@ -534,7 +534,7 @@ rcu_perf_cleanup(void)
for (j = 0; j <= writer_n_durations[i]; j++) {
wdp = &wdpp[j];
pr_alert("%s%s %4d writer-duration: %5d %llu\n",
- perf_type, PERF_FLAG,
+ scale_type, SCALE_FLAG,
i, j, *wdp);
if (j % 100 == 0)
schedule_timeout_uninterruptible(1);
@@ -573,22 +573,22 @@ static int compute_real(int n)
}
/*
- * RCU perf shutdown kthread. Just waits to be awakened, then shuts
+ * RCU scalability shutdown kthread. Just waits to be awakened, then shuts
* down system.
*/
static int
-rcu_perf_shutdown(void *arg)
+rcu_scale_shutdown(void *arg)
{
wait_event(shutdown_wq,
- atomic_read(&n_rcu_perf_writer_finished) >= nrealwriters);
+ atomic_read(&n_rcu_scale_writer_finished) >= nrealwriters);
smp_mb(); /* Wake before output. */
- rcu_perf_cleanup();
+ rcu_scale_cleanup();
kernel_power_off();
return -EINVAL;
}
/*
- * kfree_rcu() performance tests: Start a kfree_rcu() loop on all CPUs for number
+ * kfree_rcu() scalability tests: Start a kfree_rcu() loop on all CPUs for number
* of iterations and measure total time and number of GP for all iterations to complete.
*/
@@ -598,8 +598,8 @@ torture_param(int, kfree_loops, 10, "Number of loops doing kfree_alloc_num alloc
static struct task_struct **kfree_reader_tasks;
static int kfree_nrealthreads;
-static atomic_t n_kfree_perf_thread_started;
-static atomic_t n_kfree_perf_thread_ended;
+static atomic_t n_kfree_scale_thread_started;
+static atomic_t n_kfree_scale_thread_ended;
struct kfree_obj {
char kfree_obj[8];
@@ -607,7 +607,7 @@ struct kfree_obj {
};
static int
-kfree_perf_thread(void *arg)
+kfree_scale_thread(void *arg)
{
int i, loop = 0;
long me = (long)arg;
@@ -615,13 +615,13 @@ kfree_perf_thread(void *arg)
u64 start_time, end_time;
long long mem_begin, mem_during = 0;
- VERBOSE_PERFOUT_STRING("kfree_perf_thread task started");
+ VERBOSE_SCALEOUT_STRING("kfree_scale_thread task started");
set_cpus_allowed_ptr(current, cpumask_of(me % nr_cpu_ids));
set_user_nice(current, MAX_NICE);
start_time = ktime_get_mono_fast_ns();
- if (atomic_inc_return(&n_kfree_perf_thread_started) >= kfree_nrealthreads) {
+ if (atomic_inc_return(&n_kfree_scale_thread_started) >= kfree_nrealthreads) {
if (gp_exp)
b_rcu_gp_test_started = cur_ops->exp_completed() / 2;
else
@@ -646,7 +646,7 @@ kfree_perf_thread(void *arg)
cond_resched();
} while (!torture_must_stop() && ++loop < kfree_loops);
- if (atomic_inc_return(&n_kfree_perf_thread_ended) >= kfree_nrealthreads) {
+ if (atomic_inc_return(&n_kfree_scale_thread_ended) >= kfree_nrealthreads) {
end_time = ktime_get_mono_fast_ns();
if (gp_exp)
@@ -656,7 +656,7 @@ kfree_perf_thread(void *arg)
pr_alert("Total time taken by all kfree'ers: %llu ns, loops: %d, batches: %ld, memory footprint: %lldMB\n",
(unsigned long long)(end_time - start_time), kfree_loops,
- rcuperf_seq_diff(b_rcu_gp_test_finished, b_rcu_gp_test_started),
+ rcuscale_seq_diff(b_rcu_gp_test_finished, b_rcu_gp_test_started),
(mem_begin - mem_during) >> (20 - PAGE_SHIFT));
if (shutdown) {
@@ -665,12 +665,12 @@ kfree_perf_thread(void *arg)
}
}
- torture_kthread_stopping("kfree_perf_thread");
+ torture_kthread_stopping("kfree_scale_thread");
return 0;
}
static void
-kfree_perf_cleanup(void)
+kfree_scale_cleanup(void)
{
int i;
@@ -679,7 +679,7 @@ kfree_perf_cleanup(void)
if (kfree_reader_tasks) {
for (i = 0; i < kfree_nrealthreads; i++)
- torture_stop_kthread(kfree_perf_thread,
+ torture_stop_kthread(kfree_scale_thread,
kfree_reader_tasks[i]);
kfree(kfree_reader_tasks);
}
@@ -691,20 +691,20 @@ kfree_perf_cleanup(void)
* shutdown kthread. Just waits to be awakened, then shuts down system.
*/
static int
-kfree_perf_shutdown(void *arg)
+kfree_scale_shutdown(void *arg)
{
wait_event(shutdown_wq,
- atomic_read(&n_kfree_perf_thread_ended) >= kfree_nrealthreads);
+ atomic_read(&n_kfree_scale_thread_ended) >= kfree_nrealthreads);
smp_mb(); /* Wake before output. */
- kfree_perf_cleanup();
+ kfree_scale_cleanup();
kernel_power_off();
return -EINVAL;
}
static int __init
-kfree_perf_init(void)
+kfree_scale_init(void)
{
long i;
int firsterr = 0;
@@ -713,7 +713,7 @@ kfree_perf_init(void)
/* Start up the kthreads. */
if (shutdown) {
init_waitqueue_head(&shutdown_wq);
- firsterr = torture_create_kthread(kfree_perf_shutdown, NULL,
+ firsterr = torture_create_kthread(kfree_scale_shutdown, NULL,
shutdown_task);
if (firsterr)
goto unwind;
@@ -730,13 +730,13 @@ kfree_perf_init(void)
}
for (i = 0; i < kfree_nrealthreads; i++) {
- firsterr = torture_create_kthread(kfree_perf_thread, (void *)i,
+ firsterr = torture_create_kthread(kfree_scale_thread, (void *)i,
kfree_reader_tasks[i]);
if (firsterr)
goto unwind;
}
- while (atomic_read(&n_kfree_perf_thread_started) < kfree_nrealthreads)
+ while (atomic_read(&n_kfree_scale_thread_started) < kfree_nrealthreads)
schedule_timeout_uninterruptible(1);
torture_init_end();
@@ -744,35 +744,35 @@ kfree_perf_init(void)
unwind:
torture_init_end();
- kfree_perf_cleanup();
+ kfree_scale_cleanup();
return firsterr;
}
static int __init
-rcu_perf_init(void)
+rcu_scale_init(void)
{
long i;
int firsterr = 0;
- static struct rcu_perf_ops *perf_ops[] = {
+ static struct rcu_scale_ops *scale_ops[] = {
&rcu_ops, &srcu_ops, &srcud_ops, &tasks_ops,
};
- if (!torture_init_begin(perf_type, verbose))
+ if (!torture_init_begin(scale_type, verbose))
return -EBUSY;
- /* Process args and tell the world that the perf'er is on the job. */
- for (i = 0; i < ARRAY_SIZE(perf_ops); i++) {
- cur_ops = perf_ops[i];
- if (strcmp(perf_type, cur_ops->name) == 0)
+ /* Process args and announce that the scalability'er is on the job. */
+ for (i = 0; i < ARRAY_SIZE(scale_ops); i++) {
+ cur_ops = scale_ops[i];
+ if (strcmp(scale_type, cur_ops->name) == 0)
break;
}
- if (i == ARRAY_SIZE(perf_ops)) {
- pr_alert("rcu-perf: invalid perf type: \"%s\"\n", perf_type);
- pr_alert("rcu-perf types:");
- for (i = 0; i < ARRAY_SIZE(perf_ops); i++)
- pr_cont(" %s", perf_ops[i]->name);
+ if (i == ARRAY_SIZE(scale_ops)) {
+ pr_alert("rcu-scale: invalid scale type: \"%s\"\n", scale_type);
+ pr_alert("rcu-scale types:");
+ for (i = 0; i < ARRAY_SIZE(scale_ops); i++)
+ pr_cont(" %s", scale_ops[i]->name);
pr_cont("\n");
- WARN_ON(!IS_MODULE(CONFIG_RCU_PERF_TEST));
+ WARN_ON(!IS_MODULE(CONFIG_RCU_SCALE_TEST));
firsterr = -EINVAL;
cur_ops = NULL;
goto unwind;
@@ -781,20 +781,20 @@ rcu_perf_init(void)
cur_ops->init();
if (kfree_rcu_test)
- return kfree_perf_init();
+ return kfree_scale_init();
nrealwriters = compute_real(nwriters);
nrealreaders = compute_real(nreaders);
- atomic_set(&n_rcu_perf_reader_started, 0);
- atomic_set(&n_rcu_perf_writer_started, 0);
- atomic_set(&n_rcu_perf_writer_finished, 0);
- rcu_perf_print_module_parms(cur_ops, "Start of test");
+ atomic_set(&n_rcu_scale_reader_started, 0);
+ atomic_set(&n_rcu_scale_writer_started, 0);
+ atomic_set(&n_rcu_scale_writer_finished, 0);
+ rcu_scale_print_module_parms(cur_ops, "Start of test");
/* Start up the kthreads. */
if (shutdown) {
init_waitqueue_head(&shutdown_wq);
- firsterr = torture_create_kthread(rcu_perf_shutdown, NULL,
+ firsterr = torture_create_kthread(rcu_scale_shutdown, NULL,
shutdown_task);
if (firsterr)
goto unwind;
@@ -803,17 +803,17 @@ rcu_perf_init(void)
reader_tasks = kcalloc(nrealreaders, sizeof(reader_tasks[0]),
GFP_KERNEL);
if (reader_tasks == NULL) {
- VERBOSE_PERFOUT_ERRSTRING("out of memory");
+ VERBOSE_SCALEOUT_ERRSTRING("out of memory");
firsterr = -ENOMEM;
goto unwind;
}
for (i = 0; i < nrealreaders; i++) {
- firsterr = torture_create_kthread(rcu_perf_reader, (void *)i,
+ firsterr = torture_create_kthread(rcu_scale_reader, (void *)i,
reader_tasks[i]);
if (firsterr)
goto unwind;
}
- while (atomic_read(&n_rcu_perf_reader_started) < nrealreaders)
+ while (atomic_read(&n_rcu_scale_reader_started) < nrealreaders)
schedule_timeout_uninterruptible(1);
writer_tasks = kcalloc(nrealwriters, sizeof(reader_tasks[0]),
GFP_KERNEL);
@@ -823,7 +823,7 @@ rcu_perf_init(void)
kcalloc(nrealwriters, sizeof(*writer_n_durations),
GFP_KERNEL);
if (!writer_tasks || !writer_durations || !writer_n_durations) {
- VERBOSE_PERFOUT_ERRSTRING("out of memory");
+ VERBOSE_SCALEOUT_ERRSTRING("out of memory");
firsterr = -ENOMEM;
goto unwind;
}
@@ -835,7 +835,7 @@ rcu_perf_init(void)
firsterr = -ENOMEM;
goto unwind;
}
- firsterr = torture_create_kthread(rcu_perf_writer, (void *)i,
+ firsterr = torture_create_kthread(rcu_scale_writer, (void *)i,
writer_tasks[i]);
if (firsterr)
goto unwind;
@@ -845,9 +845,9 @@ rcu_perf_init(void)
unwind:
torture_init_end();
- rcu_perf_cleanup();
+ rcu_scale_cleanup();
return firsterr;
}
-module_init(rcu_perf_init);
-module_exit(rcu_perf_cleanup);
+module_init(rcu_scale_init);
+module_exit(rcu_scale_cleanup);
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale-ftrace.sh
similarity index 92%
rename from tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh
rename to tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale-ftrace.sh
index 7d3c2be..d4bec53 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale-ftrace.sh
@@ -1,12 +1,12 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
#
-# Analyze a given results directory for rcuperf performance measurements,
+# Analyze a given results directory for rcuscale performance measurements,
# looking for ftrace data. Exits with 0 if data was found, analyzed, and
-# printed. Intended to be invoked from kvm-recheck-rcuperf.sh after
+# printed. Intended to be invoked from kvm-recheck-rcuscale.sh after
# argument checking.
#
-# Usage: kvm-recheck-rcuperf-ftrace.sh resdir
+# Usage: kvm-recheck-rcuscale-ftrace.sh resdir
#
# Copyright (C) IBM Corporation, 2016
#
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh
similarity index 84%
rename from tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf.sh
rename to tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh
index db0375a..aa74515 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh
@@ -1,9 +1,9 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
#
-# Analyze a given results directory for rcuperf performance measurements.
+# Analyze a given results directory for rcuscale scalability measurements.
#
-# Usage: kvm-recheck-rcuperf.sh resdir
+# Usage: kvm-recheck-rcuscale.sh resdir
#
# Copyright (C) IBM Corporation, 2016
#
@@ -20,7 +20,7 @@ fi
PATH=`pwd`/tools/testing/selftests/rcutorture/bin:$PATH; export PATH
. functions.sh
-if kvm-recheck-rcuperf-ftrace.sh $i
+if kvm-recheck-rcuscale-ftrace.sh $i
then
# ftrace data was successfully analyzed, call it good!
exit 0
@@ -30,12 +30,12 @@ configfile=`echo $i | sed -e 's/^.*\///'`
sed -e 's/^\[[^]]*]//' < $i/console.log |
awk '
-/-perf: .* gps: .* batches:/ {
+/-scale: .* gps: .* batches:/ {
ngps = $9;
nbatches = $11;
}
-/-perf: .*writer-duration/ {
+/-scale: .*writer-duration/ {
gptimes[++n] = $5 / 1000.;
sum += $5 / 1000.;
}
@@ -43,7 +43,7 @@ awk '
END {
newNR = asort(gptimes);
if (newNR <= 0) {
- print "No rcuperf records found???"
+ print "No rcuscale records found???"
exit;
}
pct50 = int(newNR * 50 / 100);
@@ -79,5 +79,5 @@ END {
print "99th percentile grace-period duration: " gptimes[pct99];
print "Maximum grace-period duration: " gptimes[newNR];
print "Grace periods: " ngps + 0 " Batches: " nbatches + 0 " Ratio: " ngps / nbatches;
- print "Computed from rcuperf printk output.";
+ print "Computed from rcuscale printk output.";
}'
diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 44dfdd9..0489c19 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -65,7 +65,7 @@ usage () {
echo " --qemu-args qemu-arguments"
echo " --qemu-cmd qemu-system-..."
echo " --results absolute-pathname"
- echo " --torture rcu"
+ echo " --torture lock|rcu|rcuscale|refscale|scf"
echo " --trust-make"
exit 1
}
@@ -184,13 +184,13 @@ do
shift
;;
--torture)
- checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuperf\|refscale\|scf\)$' '^--'
+ checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuscale\|refscale\|scf\)$' '^--'
TORTURE_SUITE=$2
shift
- if test "$TORTURE_SUITE" = rcuperf || test "$TORTURE_SUITE" = refscale
+ if test "$TORTURE_SUITE" = rcuscale || test "$TORTURE_SUITE" = refscale
then
# If you really want jitter for refscale or
- # rcuperf, specify it after specifying the rcuperf
+ # rcuscale, specify it after specifying the rcuscale
# or the refscale. (But why jitter in these cases?)
jitter=0
fi
diff --git a/tools/testing/selftests/rcutorture/bin/parse-console.sh b/tools/testing/selftests/rcutorture/bin/parse-console.sh
index 4e081a2..e033380 100755
--- a/tools/testing/selftests/rcutorture/bin/parse-console.sh
+++ b/tools/testing/selftests/rcutorture/bin/parse-console.sh
@@ -33,8 +33,8 @@ then
fi
cat /dev/null > $file.diags
-# Check for proper termination, except for rcuperf and refscale.
-if test "$TORTURE_SUITE" != rcuperf && test "$TORTURE_SUITE" != refscale
+# Check for proper termination, except for rcuscale and refscale.
+if test "$TORTURE_SUITE" != rcuscale && test "$TORTURE_SUITE" != refscale
then
# check for abject failure
diff --git a/tools/testing/selftests/rcutorture/configs/rcuperf/CFcommon b/tools/testing/selftests/rcutorture/configs/rcuperf/CFcommon
deleted file mode 100644
index a09816b..0000000
--- a/tools/testing/selftests/rcutorture/configs/rcuperf/CFcommon
+++ /dev/null
@@ -1,2 +0,0 @@
-CONFIG_RCU_PERF_TEST=y
-CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcuperf/CFLIST b/tools/testing/selftests/rcutorture/configs/rcuscale/CFLIST
similarity index 100%
rename from tools/testing/selftests/rcutorture/configs/rcuperf/CFLIST
rename to tools/testing/selftests/rcutorture/configs/rcuscale/CFLIST
diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon b/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon
new file mode 100644
index 0000000..87caa0e
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon
@@ -0,0 +1,2 @@
+CONFIG_RCU_SCALE_TEST=y
+CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcuperf/TINY b/tools/testing/selftests/rcutorture/configs/rcuscale/TINY
similarity index 100%
rename from tools/testing/selftests/rcutorture/configs/rcuperf/TINY
rename to tools/testing/selftests/rcutorture/configs/rcuscale/TINY
diff --git a/tools/testing/selftests/rcutorture/configs/rcuperf/TREE b/tools/testing/selftests/rcutorture/configs/rcuscale/TREE
similarity index 100%
rename from tools/testing/selftests/rcutorture/configs/rcuperf/TREE
rename to tools/testing/selftests/rcutorture/configs/rcuscale/TREE
diff --git a/tools/testing/selftests/rcutorture/configs/rcuperf/TREE54 b/tools/testing/selftests/rcutorture/configs/rcuscale/TREE54
similarity index 100%
rename from tools/testing/selftests/rcutorture/configs/rcuperf/TREE54
rename to tools/testing/selftests/rcutorture/configs/rcuscale/TREE54
diff --git a/tools/testing/selftests/rcutorture/configs/rcuperf/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh
similarity index 88%
rename from tools/testing/selftests/rcutorture/configs/rcuperf/ver_functions.sh
rename to tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh
index 777d5b0..0333e9b 100644
--- a/tools/testing/selftests/rcutorture/configs/rcuperf/ver_functions.sh
+++ b/tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh
@@ -11,6 +11,6 @@
#
# Adds per-version torture-module parameters to kernels supporting them.
per_version_boot_params () {
- echo $1 rcuperf.shutdown=1 \
- rcuperf.verbose=1
+ echo $1 rcuscale.shutdown=1 \
+ rcuscale.verbose=1
}
--
2.9.5
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