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Date:   Sun, 30 Jan 2022 10:28:26 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Christian Brauner <christian.brauner@...ntu.com>
Cc:     Seth Forshee <sforshee@...italocean.com>,
        Amir Goldstein <amir73il@...il.com>,
        Christoph Hellwig <hch@....de>,
        Al Viro <viro@...iv.linux.org.uk>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        lkp@...el.com, ying.huang@...el.com, feng.tang@...el.com,
        zhengjun.xing@...ux.intel.com, fengwei.yin@...el.com
Subject: [fs]  1ac2a41049:  fxmark.ssd_btrfs_MRPL_54_directio.works/sec 6.3%
 improvement



Greeting,

FYI, we noticed a 6.3% improvement of fxmark.ssd_btrfs_MRPL_54_directio.works/sec due to commit:


commit: 1ac2a4104968e0a60b4b3572216a92aab5c1b025 ("fs: account for filesystem mappings")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

in testcase: fxmark
on test machine: 24 threads 1 sockets Intel Atom(R) P5362 processor with 64G memory
with following parameters:

	disk: 1SSD
	media: ssd
	test: MRPL
	fstype: btrfs
	directio: directio
	cpufreq_governor: performance
	ucode: 0x9c02000e

test-description: FxMark is a filesystem benchmark that test multicore scalability.
test-url: https://github.com/sslab-gatech/fxmark





Details are as below:
-------------------------------------------------------------------------------------------------->


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.

=========================================================================================
compiler/cpufreq_governor/directio/disk/fstype/kconfig/media/rootfs/tbox_group/test/testcase/ucode:
  gcc-9/performance/directio/1SSD/btrfs/x86_64-rhel-8.3/ssd/debian-10.4-x86_64-20200603.cgz/lkp-snr-a1/MRPL/fxmark/0x9c02000e

commit: 
  476860b3eb ("fs: tweak fsuidgid_has_mapping()")
  1ac2a41049 ("fs: account for filesystem mappings")

476860b3eb4a5095 1ac2a4104968e0a60b4b3572216 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
      3.12 ±  4%      +8.6%       3.40 ±  5%  fxmark.ssd_btrfs_MRPL_1_directio.user_sec
      6.24 ±  4%      +8.6%       6.78 ±  5%  fxmark.ssd_btrfs_MRPL_1_directio.user_util
      6.02 ±  3%     +12.7%       6.79        fxmark.ssd_btrfs_MRPL_2_directio.user_sec
      6.02 ±  3%     +12.8%       6.78        fxmark.ssd_btrfs_MRPL_2_directio.user_util
     11.74           +11.1%      13.04 ±  2%  fxmark.ssd_btrfs_MRPL_4_directio.user_sec
      5.86           +11.1%       6.51 ±  2%  fxmark.ssd_btrfs_MRPL_4_directio.user_util
     69.70           +11.6%      77.82 ±  2%  fxmark.ssd_btrfs_MRPL_54_directio.user_sec
      5.80           +11.7%       6.48 ±  2%  fxmark.ssd_btrfs_MRPL_54_directio.user_util
  18538326            +6.3%   19713724        fxmark.ssd_btrfs_MRPL_54_directio.works/sec
     82.72 ± 10%     +12.4%      92.98 ±  6%  fxmark.ssd_btrfs_MRPL_72_directio.user_sec
      6.90 ± 10%     +12.3%       7.76 ±  6%  fxmark.ssd_btrfs_MRPL_72_directio.user_util
      6.25 ±  3%      +9.6%       6.85 ±  3%  iostat.cpu.user
      6.30 ±  3%      +0.6        6.91 ±  3%  mpstat.cpu.all.usr%
     23326 ±  6%     -12.8%      20337 ±  9%  softirqs.CPU1.RCU
     15850 ± 10%     +47.4%      23362 ±  6%  softirqs.CPU10.RCU
 9.565e+09            -9.2%   8.69e+09        perf-stat.i.branch-instructions
   9483620            +5.4%    9997537        perf-stat.i.branch-misses
 1.459e+10            -2.4%  1.424e+10        perf-stat.i.dTLB-loads
 8.525e+09            +1.0%  8.607e+09        perf-stat.i.dTLB-stores
 5.183e+10            -3.7%  4.991e+10        perf-stat.i.instructions
      1.00            -3.6%       0.96        perf-stat.i.ipc
      0.60            -2.6%       0.59        perf-stat.i.metric.G/sec
    760.04            -4.2%     727.91        perf-stat.i.metric.M/sec
      0.01            +3.2%       0.01        perf-stat.overall.MPKI
      0.10            +0.0        0.12        perf-stat.overall.branch-miss-rate%
      0.42            +3.7%       0.44        perf-stat.overall.cpi
      2.36            -3.6%       2.27        perf-stat.overall.ipc
 9.546e+09            -9.2%  8.665e+09        perf-stat.ps.branch-instructions
   9477532            +5.2%    9972188        perf-stat.ps.branch-misses
 1.456e+10            -2.5%   1.42e+10        perf-stat.ps.dTLB-loads
 8.507e+09            +0.9%  8.582e+09        perf-stat.ps.dTLB-stores
 5.172e+10            -3.8%  4.976e+10        perf-stat.ps.instructions
 1.876e+13            -3.8%  1.805e+13        perf-stat.total.instructions
      7.90            -4.3        3.64        perf-profile.calltrace.cycles-pp.generic_permission.inode_permission.link_path_walk.path_lookupat.filename_lookup
     12.22 ±  2%      -3.8        8.39 ±  6%  perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_lookupat.filename_lookup.user_path_at_empty
     47.68            -2.2       45.44        perf-profile.calltrace.cycles-pp.link_path_walk.path_lookupat.filename_lookup.user_path_at_empty.vfs_statx
     56.64            -1.6       55.03        perf-profile.calltrace.cycles-pp.path_lookupat.filename_lookup.user_path_at_empty.vfs_statx.__do_sys_newstat
     57.57            -1.5       56.02        perf-profile.calltrace.cycles-pp.filename_lookup.user_path_at_empty.vfs_statx.__do_sys_newstat.do_syscall_64
     80.34            -1.0       79.36        perf-profile.calltrace.cycles-pp.vfs_statx.__do_sys_newstat.do_syscall_64.entry_SYSCALL_64_after_hwframe.__xstat64
      1.41 ±  2%      -0.8        0.57        perf-profile.calltrace.cycles-pp.generic_fillattr.btrfs_getattr.vfs_statx.__do_sys_newstat.do_syscall_64
      4.31 ±  2%      -0.5        3.80        perf-profile.calltrace.cycles-pp.btrfs_getattr.vfs_statx.__do_sys_newstat.do_syscall_64.entry_SYSCALL_64_after_hwframe
     67.92            -0.5       67.42        perf-profile.calltrace.cycles-pp.user_path_at_empty.vfs_statx.__do_sys_newstat.do_syscall_64.entry_SYSCALL_64_after_hwframe
      1.36 ±  2%      -0.4        0.94        perf-profile.calltrace.cycles-pp.common_perm_cond.security_inode_getattr.vfs_getattr.vfs_statx.__do_sys_newstat
      1.63 ±  2%      -0.4        1.23 ±  2%  perf-profile.calltrace.cycles-pp.security_inode_getattr.vfs_getattr.vfs_statx.__do_sys_newstat.do_syscall_64
      1.83 ±  2%      -0.4        1.44        perf-profile.calltrace.cycles-pp.vfs_getattr.vfs_statx.__do_sys_newstat.do_syscall_64.entry_SYSCALL_64_after_hwframe
      0.64            +0.0        0.67 ±  2%  perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__xstat64
      0.56            +0.0        0.60        perf-profile.calltrace.cycles-pp.__might_fault._copy_to_user.cp_new_stat.__do_sys_newstat.do_syscall_64
      0.55            +0.0        0.60 ±  4%  perf-profile.calltrace.cycles-pp.__might_fault.strncpy_from_user.getname_flags.user_path_at_empty.vfs_statx
      0.71 ±  2%      +0.1        0.77        perf-profile.calltrace.cycles-pp._raw_spin_lock.lockref_put_or_lock.dput.path_put.vfs_statx
      0.84 ±  3%      +0.1        0.90        perf-profile.calltrace.cycles-pp.lockref_get_not_dead.__legitimize_path.try_to_unlazy.complete_walk.path_lookupat
      0.83 ±  2%      +0.1        0.90 ±  2%  perf-profile.calltrace.cycles-pp.kmem_cache_free.user_path_at_empty.vfs_statx.__do_sys_newstat.do_syscall_64
      1.02 ±  2%      +0.1        1.09        perf-profile.calltrace.cycles-pp.set_root.nd_jump_root.path_init.path_lookupat.filename_lookup
      0.73 ±  2%      +0.1        0.80 ±  4%  perf-profile.calltrace.cycles-pp._raw_spin_lock.btrfs_getattr.vfs_statx.__do_sys_newstat.do_syscall_64
      0.92            +0.1        1.00        perf-profile.calltrace.cycles-pp.lockref_put_or_lock.dput.path_put.vfs_statx.__do_sys_newstat
      0.74 ±  6%      +0.1        0.82 ±  2%  perf-profile.calltrace.cycles-pp.__lookup_mnt.step_into.walk_component.link_path_walk.path_lookupat
      0.70 ±  3%      +0.1        0.78        perf-profile.calltrace.cycles-pp._raw_spin_lock.inode_get_bytes.btrfs_getattr.vfs_statx.__do_sys_newstat
      1.37 ±  2%      +0.1        1.46 ±  2%  perf-profile.calltrace.cycles-pp.nd_jump_root.path_init.path_lookupat.filename_lookup.user_path_at_empty
      1.91 ±  2%      +0.1        2.01        perf-profile.calltrace.cycles-pp.__legitimize_path.try_to_unlazy.complete_walk.path_lookupat.filename_lookup
      0.86 ±  2%      +0.1        0.96        perf-profile.calltrace.cycles-pp.inode_get_bytes.btrfs_getattr.vfs_statx.__do_sys_newstat.do_syscall_64
      2.20            +0.1        2.34        perf-profile.calltrace.cycles-pp.path_init.path_lookupat.filename_lookup.user_path_at_empty.vfs_statx
      0.98 ±  3%      +0.1        1.13        perf-profile.calltrace.cycles-pp.__d_lookup_rcu.lookup_fast.walk_component.path_lookupat.filename_lookup
      3.14 ±  2%      +0.2        3.30        perf-profile.calltrace.cycles-pp.complete_walk.path_lookupat.filename_lookup.user_path_at_empty.vfs_statx
      2.82 ±  2%      +0.2        2.97        perf-profile.calltrace.cycles-pp.try_to_unlazy.complete_walk.path_lookupat.filename_lookup.user_path_at_empty
      2.32            +0.2        2.49        perf-profile.calltrace.cycles-pp.dput.path_put.vfs_statx.__do_sys_newstat.do_syscall_64
      1.42            +0.2        1.58        perf-profile.calltrace.cycles-pp.lookup_fast.walk_component.path_lookupat.filename_lookup.user_path_at_empty
      2.48            +0.2        2.64        perf-profile.calltrace.cycles-pp.path_put.vfs_statx.__do_sys_newstat.do_syscall_64.entry_SYSCALL_64_after_hwframe
      2.70            +0.2        2.88 ±  2%  perf-profile.calltrace.cycles-pp.vfs_getattr_nosec.vfs_statx.__do_sys_newstat.do_syscall_64.entry_SYSCALL_64_after_hwframe
      2.34            +0.2        2.58        perf-profile.calltrace.cycles-pp.walk_component.path_lookupat.filename_lookup.user_path_at_empty.vfs_statx
      2.94            +0.2        3.18 ±  2%  perf-profile.calltrace.cycles-pp.copy_user_enhanced_fast_string._copy_to_user.cp_new_stat.__do_sys_newstat.do_syscall_64
      0.74 ±  4%      +0.3        1.00 ± 14%  perf-profile.calltrace.cycles-pp.__virt_addr_valid.__check_object_size.strncpy_from_user.getname_flags.user_path_at_empty
      1.99            +0.3        2.26 ±  4%  perf-profile.calltrace.cycles-pp.__check_object_size.strncpy_from_user.getname_flags.user_path_at_empty.vfs_statx
      2.41            +0.3        2.68 ±  3%  perf-profile.calltrace.cycles-pp.kmem_cache_alloc.getname_flags.user_path_at_empty.vfs_statx.__do_sys_newstat
      4.03            +0.3        4.32        perf-profile.calltrace.cycles-pp._copy_to_user.cp_new_stat.__do_sys_newstat.do_syscall_64.entry_SYSCALL_64_after_hwframe
      4.72            +0.3        5.04        perf-profile.calltrace.cycles-pp.__entry_text_start.__xstat64
      5.85            +0.4        6.22        perf-profile.calltrace.cycles-pp.step_into.walk_component.link_path_walk.path_lookupat.filename_lookup
      1.98            +0.4        2.38 ±  6%  perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.__xstat64
      5.60            +0.4        6.02        perf-profile.calltrace.cycles-pp.cp_new_stat.__do_sys_newstat.do_syscall_64.entry_SYSCALL_64_after_hwframe.__xstat64
      5.99            +0.6        6.61        perf-profile.calltrace.cycles-pp.strncpy_from_user.getname_flags.user_path_at_empty.vfs_statx.__do_sys_newstat
     13.15            +0.8       14.00 ±  2%  perf-profile.calltrace.cycles-pp.lookup_fast.walk_component.link_path_walk.path_lookupat.filename_lookup
      9.06            +0.9       10.00        perf-profile.calltrace.cycles-pp.getname_flags.user_path_at_empty.vfs_statx.__do_sys_newstat.do_syscall_64
     22.59            +1.5       24.07        perf-profile.calltrace.cycles-pp.walk_component.link_path_walk.path_lookupat.filename_lookup.user_path_at_empty
      6.30            -6.3        0.00        perf-profile.children.cycles-pp.make_kuid
      5.92            -5.9        0.00        perf-profile.children.cycles-pp.map_id_range_down
      8.08            -4.3        3.74        perf-profile.children.cycles-pp.generic_permission
     12.40 ±  2%      -3.8        8.57 ±  6%  perf-profile.children.cycles-pp.inode_permission
     47.89            -2.2       45.65        perf-profile.children.cycles-pp.link_path_walk
     56.72            -1.6       55.12        perf-profile.children.cycles-pp.path_lookupat
     57.63            -1.5       56.08        perf-profile.children.cycles-pp.filename_lookup
     80.38            -1.0       79.40        perf-profile.children.cycles-pp.vfs_statx
      1.43 ±  2%      -0.8        0.59        perf-profile.children.cycles-pp.generic_fillattr
      4.37 ±  2%      -0.5        3.86        perf-profile.children.cycles-pp.btrfs_getattr
     67.97            -0.5       67.47        perf-profile.children.cycles-pp.user_path_at_empty
      1.38 ±  2%      -0.4        0.96        perf-profile.children.cycles-pp.common_perm_cond
      1.65 ±  2%      -0.4        1.24        perf-profile.children.cycles-pp.security_inode_getattr
      1.84 ±  2%      -0.4        1.45        perf-profile.children.cycles-pp.vfs_getattr
      0.07 ± 10%      -0.0        0.05 ±  8%  perf-profile.children.cycles-pp.start_secondary
      0.39            +0.0        0.41        perf-profile.children.cycles-pp.from_kuid_munged
      0.29 ±  2%      +0.0        0.32 ±  2%  perf-profile.children.cycles-pp.mntput_no_expire
      0.46 ±  4%      +0.0        0.48        perf-profile.children.cycles-pp.__cond_resched
      0.19 ±  4%      +0.0        0.22 ±  4%  perf-profile.children.cycles-pp.putname
      0.38 ±  2%      +0.0        0.42 ±  2%  perf-profile.children.cycles-pp.btrfs_permission
      0.76 ±  2%      +0.0        0.80        perf-profile.children.cycles-pp.__might_sleep
      0.71            +0.0        0.75 ±  2%  perf-profile.children.cycles-pp.syscall_exit_to_user_mode
      0.31 ±  5%      +0.0        0.36 ±  3%  perf-profile.children.cycles-pp.syscall_enter_from_user_mode
      0.66 ±  2%      +0.0        0.71 ±  2%  perf-profile.children.cycles-pp.map_id_up
      0.85 ±  3%      +0.1        0.91        perf-profile.children.cycles-pp.lockref_get_not_dead
      0.84 ±  2%      +0.1        0.91 ±  2%  perf-profile.children.cycles-pp.kmem_cache_free
      1.56            +0.1        1.63 ±  2%  perf-profile.children.cycles-pp.security_inode_permission
      1.03 ±  3%      +0.1        1.10        perf-profile.children.cycles-pp.set_root
      1.46            +0.1        1.53 ±  2%  perf-profile.children.cycles-pp.__might_resched
      0.97            +0.1        1.04        perf-profile.children.cycles-pp.lockref_put_or_lock
      0.76 ±  6%      +0.1        0.84 ±  2%  perf-profile.children.cycles-pp.__lookup_mnt
      1.41 ±  2%      +0.1        1.49        perf-profile.children.cycles-pp.nd_jump_root
      1.25            +0.1        1.34 ±  2%  perf-profile.children.cycles-pp.__might_fault
      1.94 ±  2%      +0.1        2.04        perf-profile.children.cycles-pp.__legitimize_path
      0.88 ±  2%      +0.1        0.98        perf-profile.children.cycles-pp.inode_get_bytes
      2.22            +0.1        2.36 ±  2%  perf-profile.children.cycles-pp.path_init
      2.86 ±  2%      +0.2        3.01        perf-profile.children.cycles-pp.try_to_unlazy
      3.16 ±  2%      +0.2        3.31        perf-profile.children.cycles-pp.complete_walk
      2.72            +0.2        2.89        perf-profile.children.cycles-pp.vfs_getattr_nosec
      2.52            +0.2        2.70        perf-profile.children.cycles-pp.dput
      2.50            +0.2        2.68        perf-profile.children.cycles-pp.path_put
      2.18 ±  2%      +0.2        2.39        perf-profile.children.cycles-pp._raw_spin_lock
      3.20            +0.2        3.42        perf-profile.children.cycles-pp.__entry_text_start
      3.20            +0.2        3.44 ±  2%  perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
      0.77 ±  4%      +0.3        1.03 ± 14%  perf-profile.children.cycles-pp.__virt_addr_valid
      2.04            +0.3        2.31 ±  4%  perf-profile.children.cycles-pp.__check_object_size
      2.50            +0.3        2.78 ±  3%  perf-profile.children.cycles-pp.kmem_cache_alloc
      4.07            +0.3        4.36        perf-profile.children.cycles-pp._copy_to_user
      6.44            +0.4        6.84        perf-profile.children.cycles-pp.step_into
      5.65            +0.4        6.08        perf-profile.children.cycles-pp.cp_new_stat
      3.98            +0.6        4.54 ±  3%  perf-profile.children.cycles-pp.syscall_return_via_sysret
      6.04            +0.6        6.66        perf-profile.children.cycles-pp.strncpy_from_user
     10.38            +0.7       11.09 ±  3%  perf-profile.children.cycles-pp.__d_lookup_rcu
      9.10            +0.9       10.04        perf-profile.children.cycles-pp.getname_flags
     14.74            +1.0       15.77 ±  2%  perf-profile.children.cycles-pp.lookup_fast
     25.20            +1.7       26.94        perf-profile.children.cycles-pp.walk_component
      5.65            -5.6        0.00        perf-profile.self.cycles-pp.map_id_range_down
      0.06 ±  6%      +0.0        0.08 ±  6%  perf-profile.self.cycles-pp.from_kgid_munged
      0.16 ±  4%      +0.0        0.18 ±  2%  perf-profile.self.cycles-pp.inode_get_bytes
      0.07 ±  5%      +0.0        0.09 ±  4%  perf-profile.self.cycles-pp.path_put
      0.28            +0.0        0.30 ±  2%  perf-profile.self.cycles-pp.mntput_no_expire
      0.18 ±  2%      +0.0        0.20 ±  6%  perf-profile.self.cycles-pp.putname
      0.34 ±  2%      +0.0        0.37        perf-profile.self.cycles-pp.btrfs_permission
      0.26 ±  4%      +0.0        0.29 ±  4%  perf-profile.self.cycles-pp.__do_sys_newstat
      0.36 ±  5%      +0.0        0.40        perf-profile.self.cycles-pp.common_perm_cond
      0.47 ±  2%      +0.0        0.50 ±  2%  perf-profile.self.cycles-pp.do_syscall_64
      0.66 ±  2%      +0.0        0.70 ±  2%  perf-profile.self.cycles-pp.__might_sleep
      0.64            +0.0        0.68 ±  2%  perf-profile.self.cycles-pp.vfs_statx
      0.62 ±  2%      +0.0        0.66 ±  2%  perf-profile.self.cycles-pp.map_id_up
      0.58 ±  2%      +0.0        0.63 ±  2%  perf-profile.self.cycles-pp.getname_flags
      0.66            +0.0        0.72 ±  2%  perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
      0.84 ±  2%      +0.1        0.89        perf-profile.self.cycles-pp.lockref_get_not_dead
      0.77            +0.1        0.82 ±  2%  perf-profile.self.cycles-pp.filename_lookup
      0.70 ±  4%      +0.1        0.76        perf-profile.self.cycles-pp.path_lookupat
      0.66            +0.1        0.72 ±  3%  perf-profile.self.cycles-pp.dput
      0.82 ±  2%      +0.1        0.88 ±  2%  perf-profile.self.cycles-pp.kmem_cache_free
      1.00 ±  3%      +0.1        1.06 ±  2%  perf-profile.self.cycles-pp.set_root
      0.80 ±  2%      +0.1        0.86 ±  2%  perf-profile.self.cycles-pp.path_init
      1.46            +0.1        1.53 ±  2%  perf-profile.self.cycles-pp.security_inode_permission
      1.41            +0.1        1.49 ±  2%  perf-profile.self.cycles-pp.__might_resched
      0.75 ±  6%      +0.1        0.82 ±  2%  perf-profile.self.cycles-pp.__lookup_mnt
      0.82 ±  2%      +0.1        0.90 ±  3%  perf-profile.self.cycles-pp.cp_new_stat
      0.48 ±  2%      +0.1        0.58        perf-profile.self.cycles-pp.generic_fillattr
      1.67            +0.1        1.78        perf-profile.self.cycles-pp.__entry_text_start
      2.03            +0.1        2.17 ±  2%  perf-profile.self.cycles-pp.__xstat64
      1.16 ±  6%      +0.2        1.31 ±  2%  perf-profile.self.cycles-pp.btrfs_getattr
      2.69            +0.2        2.86        perf-profile.self.cycles-pp.vfs_getattr_nosec
      2.12            +0.2        2.33        perf-profile.self.cycles-pp._raw_spin_lock
      3.17            +0.2        3.42 ±  2%  perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
      1.69 ±  2%      +0.2        1.94 ±  5%  perf-profile.self.cycles-pp.kmem_cache_alloc
      0.76 ±  4%      +0.3        1.02 ± 14%  perf-profile.self.cycles-pp.__virt_addr_valid
      4.05            +0.3        4.35        perf-profile.self.cycles-pp.walk_component
      3.36            +0.3        3.66        perf-profile.self.cycles-pp.strncpy_from_user
      4.33            +0.3        4.64        perf-profile.self.cycles-pp.lookup_fast
      5.56            +0.3        5.88        perf-profile.self.cycles-pp.step_into
      3.12            +0.4        3.48        perf-profile.self.cycles-pp.generic_permission
      3.97            +0.6        4.53 ±  3%  perf-profile.self.cycles-pp.syscall_return_via_sysret
     10.74 ±  2%      +0.6       11.30 ±  2%  perf-profile.self.cycles-pp.link_path_walk
     10.23            +0.7       10.93 ±  3%  perf-profile.self.cycles-pp.__d_lookup_rcu




Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.


---
0DAY/LKP+ Test Infrastructure                   Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org       Intel Corporation

Thanks,
Oliver Sang


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