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Date: Mon, 28 Jan 2019 16:09:40 +0100
From: Jiri Olsa <jolsa@...hat.com>
To: kan.liang@...ux.intel.com
Cc: peterz@...radead.org, acme@...nel.org, tglx@...utronix.de,
mingo@...hat.com, linux-kernel@...r.kernel.org, eranian@...gle.com,
namhyung@...nel.org, ak@...ux.intel.com
Subject: Re: [PATCH V2 05/12] perf mem: Clean up output format and sort order
string
On Wed, Jan 23, 2019 at 07:15:23AM -0800, kan.liang@...ux.intel.com wrote:
> From: Kan Liang <kan.liang@...ux.intel.com>
>
> Now, "--phys-data" is the only option which impacts the output format
> and sort order. A simple "if else" is enough to handle the option.
> But there will be more options added, e.g. "--data-page-size", which
> also impact the output format and sort order. The code will become too
> complex to be maintained.
>
> Divide the big printf into several small pieces. Output the specific
> piece only if the related option is applied.
>
> Divide the big sort order string into several small pieces as well.
> Appends specific sort string only if the related option is applied.
>
> No functional change.
hum, I'm getting some functional changes:
# perf mem record
# perf.old mem report --stdio > base
# perf mem report --stdio > new
# diff -puw base new
--- base 2019-01-28 16:06:13.264991170 +0100
+++ new 2019-01-28 16:06:31.347680820 +0100
@@ -5,8133 +5,7346 @@
#
# Samples: 3K of event 'cpu/mem-loads,ldlat=30/P'
# Total weight : 203677
-# Sort order : local_weight,mem,sym,dso,symbol_daddr,dso_daddr,snoop,tlb,locked
+# Sort order : mem,sym,dso,symbol_daddr,dso_daddr,tlb,locked,ipc_null
#
-# Overhead Samples Local Weight Memory access Symbol Shared Object Data Symbol Data Object Snoop TLB access Locked
-# ........ ............ ............ ........................ ......................................... ................ ................................................. ............................. ............ ...................... ......
+# Overhead Samples Memory access Symbol Shared Object Data Symbol Data Object TLB access Locked IPC [IPC Coverage]
+# ........ ............ ........................ ......................................... ................ ................................................. ............................. ...................... ...... ....................
could you please split this patch to separate simple changes?
jirka
>
> Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
> ---
>
> No changes since V1
>
> tools/perf/builtin-mem.c | 132 +++++++++++++++++++++++------------------------
> tools/perf/util/sort.h | 2 +
> 2 files changed, 66 insertions(+), 68 deletions(-)
>
> diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
> index 57393e9..6048fca 100644
> --- a/tools/perf/builtin-mem.c
> +++ b/tools/perf/builtin-mem.c
> @@ -14,6 +14,7 @@
> #include "util/mem-events.h"
> #include "util/debug.h"
> #include "util/symbol.h"
> +#include "util/sort.h"
>
> #define MEM_OPERATION_LOAD 0x1
> #define MEM_OPERATION_STORE 0x2
> @@ -153,7 +154,7 @@ dump_raw_samples(struct perf_tool *tool,
> {
> struct perf_mem *mem = container_of(tool, struct perf_mem, tool);
> struct addr_location al;
> - const char *fmt;
> + const char *fmt, *field_sep;
>
> if (machine__resolve(machine, &al, sample) < 0) {
> fprintf(stderr, "problem processing %d event, skipping it.\n",
> @@ -167,60 +168,45 @@ dump_raw_samples(struct perf_tool *tool,
> if (al.map != NULL)
> al.map->dso->hit = 1;
>
> - if (mem->phys_addr) {
> - if (symbol_conf.field_sep) {
> - fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s0x%016"PRIx64
> - "%s%"PRIu64"%s0x%"PRIx64"%s%s:%s\n";
> - } else {
> - fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
> - "%s0x%016"PRIx64"%s%5"PRIu64"%s0x%06"PRIx64
> - "%s%s:%s\n";
> - symbol_conf.field_sep = " ";
> - }
> -
> - printf(fmt,
> - sample->pid,
> - symbol_conf.field_sep,
> - sample->tid,
> - symbol_conf.field_sep,
> - sample->ip,
> - symbol_conf.field_sep,
> - sample->addr,
> - symbol_conf.field_sep,
> - sample->phys_addr,
> - symbol_conf.field_sep,
> - sample->weight,
> - symbol_conf.field_sep,
> - sample->data_src,
> - symbol_conf.field_sep,
> - al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
> - al.sym ? al.sym->name : "???");
> + field_sep = symbol_conf.field_sep;
> + if (field_sep) {
> + fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s";
> } else {
> - if (symbol_conf.field_sep) {
> - fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64
> - "%s0x%"PRIx64"%s%s:%s\n";
> - } else {
> - fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
> - "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n";
> - symbol_conf.field_sep = " ";
> - }
> + fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64"%s";
> + symbol_conf.field_sep = " ";
> + }
> + printf(fmt,
> + sample->pid,
> + symbol_conf.field_sep,
> + sample->tid,
> + symbol_conf.field_sep,
> + sample->ip,
> + symbol_conf.field_sep,
> + sample->addr,
> + symbol_conf.field_sep);
>
> + if (mem->phys_addr) {
> + if (field_sep)
> + fmt = "0x%"PRIx64"%s";
> + else
> + fmt = "0x%016"PRIx64"%s";
> printf(fmt,
> - sample->pid,
> - symbol_conf.field_sep,
> - sample->tid,
> - symbol_conf.field_sep,
> - sample->ip,
> - symbol_conf.field_sep,
> - sample->addr,
> - symbol_conf.field_sep,
> - sample->weight,
> - symbol_conf.field_sep,
> - sample->data_src,
> - symbol_conf.field_sep,
> - al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
> - al.sym ? al.sym->name : "???");
> + sample->phys_addr,
> + symbol_conf.field_sep);
> }
> +
> + if (field_sep)
> + fmt = "%"PRIu64"%s0x%"PRIx64"%s%s:%s\n";
> + else
> + fmt = "%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n";
> +
> + printf(fmt,
> + sample->weight,
> + symbol_conf.field_sep,
> + sample->data_src,
> + symbol_conf.field_sep,
> + al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
> + al.sym ? al.sym->name : "???");
> out_put:
> addr_location__put(&al);
> return 0;
> @@ -262,10 +248,12 @@ static int report_raw_events(struct perf_mem *mem)
> if (ret < 0)
> goto out_delete;
>
> + printf("# PID, TID, IP, ADDR, ");
> +
> if (mem->phys_addr)
> - printf("# PID, TID, IP, ADDR, PHYS ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
> - else
> - printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
> + printf("PHYS ADDR, ");
> +
> + printf("LOCAL WEIGHT, DSRC, SYMBOL\n");
>
> ret = perf_session__process_events(session);
>
> @@ -273,11 +261,30 @@ static int report_raw_events(struct perf_mem *mem)
> perf_session__delete(session);
> return ret;
> }
> +static char *get_sort_order(struct perf_mem *mem)
> +{
> + char sort[MAX_SORT_ORDER_STR];
> +
> + /*
> + * there is no weight (cost) associated with stores, so don't print
> + * the column
> + */
> + if (mem->operation & MEM_OPERATION_STORE)
> + strcpy(sort, "--sort=mem,sym,dso,symbol_daddr,dso_daddr,tlb,locked");
> + else
> + strcpy(sort, default_mem_sort_order);
> +
> + if (mem->phys_addr)
> + strcat(sort, ",phys_daddr");
> +
> + return strdup(sort);
> +}
>
> static int report_events(int argc, const char **argv, struct perf_mem *mem)
> {
> const char **rep_argv;
> int ret, i = 0, j, rep_argc;
> + char *new_sort_order;
>
> if (mem->dump_raw)
> return report_raw_events(mem);
> @@ -291,20 +298,9 @@ static int report_events(int argc, const char **argv, struct perf_mem *mem)
> rep_argv[i++] = "--mem-mode";
> rep_argv[i++] = "-n"; /* display number of samples */
>
> - /*
> - * there is no weight (cost) associated with stores, so don't print
> - * the column
> - */
> - if (!(mem->operation & MEM_OPERATION_LOAD)) {
> - if (mem->phys_addr)
> - rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
> - "dso_daddr,tlb,locked,phys_daddr";
> - else
> - rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
> - "dso_daddr,tlb,locked";
> - } else if (mem->phys_addr)
> - rep_argv[i++] = "--sort=local_weight,mem,sym,dso,symbol_daddr,"
> - "dso_daddr,snoop,tlb,locked,phys_daddr";
> + new_sort_order = get_sort_order(mem);
> + if (new_sort_order)
> + rep_argv[i++] = new_sort_order;
>
> for (j = 1; j < argc; j++, i++)
> rep_argv[i] = argv[j];
> diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
> index ea8ff64..fc8290c 100644
> --- a/tools/perf/util/sort.h
> +++ b/tools/perf/util/sort.h
> @@ -46,6 +46,8 @@ extern struct sort_entry sort_srcline;
> extern enum sort_type sort__first_dimension;
> extern const char default_mem_sort_order[];
>
> +#define MAX_SORT_ORDER_STR 128
> +
> struct he_stat {
> u64 period;
> u64 period_sys;
> --
> 2.7.4
>
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