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X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Aug 2023 08:35:35.5404 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: zAwD1saR8eMhHwTjWGr3dYT2lujy9eaLhZ7nacbcN3MXoA6bOJQkwu83qjqKeHarcdLnEPA3Xq6omswkvAvQ+g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR11MB6329 X-OriginatorOrg: intel.com X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, kernel test robot noticed a -8.4% regression of stress-ng.getdent.ops_per_sec on: commit: 27152bceea1df27ffebb12ac9cd9adbf2c4c3f35 ("eventfs: Move tracing/events to eventfs") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master testcase: stress-ng test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory parameters: nr_threads: 10% disk: 1HDD testtime: 60s fs: xfs class: filesystem test: getdent cpufreq_governor: performance If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202308101425.8416d10d-oliver.sang@intel.com Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20230810/202308101425.8416d10d-oliver.sang@intel.com ========================================================================================= class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime: filesystem/gcc-12/performance/1HDD/xfs/x86_64-rhel-8.3/10%/debian-11.1-x86_64-20220510.cgz/lkp-icl-2sp8/getdent/stress-ng/60s commit: 5bdcd5f533 ("eventfs: Implement removal of meta data from eventfs") 27152bceea ("eventfs: Move tracing/events to eventfs") 5bdcd5f5331a276a 27152bceea1df27ffebb12ac9cd ---------------- --------------------------- %stddev %change %stddev \ | \ 8.61 +1.5% 8.74 iostat.cpu.system 379.67 ? 11% +34.2% 509.50 ? 13% perf-c2c.HITM.remote 15882418 ? 7% -14.5% 13581053 ? 10% numa-numastat.node1.local_node 15926621 ? 7% -14.5% 13610475 ? 10% numa-numastat.node1.numa_hit 15926831 ? 7% -14.5% 13610636 ? 10% numa-vmstat.node1.numa_hit 15882627 ? 7% -14.5% 13581214 ? 10% numa-vmstat.node1.numa_local 38443696 -8.4% 35207563 stress-ng.getdent.ops 640728 -8.4% 586792 stress-ng.getdent.ops_per_sec 26234871 -8.6% 23974680 stress-ng.time.minor_page_faults 41306 +2.2% 42218 proc-vmstat.nr_slab_unreclaimable 29828360 -8.6% 27268832 proc-vmstat.numa_hit 29762067 -8.6% 27201349 proc-vmstat.numa_local 31109897 ? 2% -9.2% 28250839 ? 2% proc-vmstat.pgalloc_normal 26551020 -8.5% 24287915 proc-vmstat.pgfault 31026942 ? 2% -9.2% 28164597 ? 2% proc-vmstat.pgfree 12911 ? 13% -9.9% 11638 proc-vmstat.pgreuse 3.097e+09 -4.2% 2.967e+09 perf-stat.i.branch-instructions 0.74 +0.0 0.77 perf-stat.i.branch-miss-rate% 1.581e+08 -2.6% 1.541e+08 perf-stat.i.cache-references 1.50 +5.2% 1.58 perf-stat.i.cpi 1067449 ? 2% -6.7% 995871 ? 2% perf-stat.i.dTLB-load-misses 3.831e+09 -4.7% 3.652e+09 perf-stat.i.dTLB-loads 0.14 -0.0 0.14 perf-stat.i.dTLB-store-miss-rate% 3287323 -8.6% 3005920 perf-stat.i.dTLB-store-misses 2.256e+09 -6.3% 2.115e+09 perf-stat.i.dTLB-stores 1.484e+10 -4.4% 1.419e+10 perf-stat.i.instructions 0.68 -3.4% 0.66 perf-stat.i.ipc 145.93 -4.9% 138.83 perf-stat.i.metric.M/sec 422840 -8.5% 386712 perf-stat.i.minor-faults 7303977 +5.8% 7728544 perf-stat.i.node-load-misses 76.90 ? 2% -5.5 71.36 ? 4% perf-stat.i.node-store-miss-rate% 6875532 -3.1% 6661427 perf-stat.i.node-store-misses 422840 -8.5% 386712 perf-stat.i.page-faults 0.74 +0.0 0.78 perf-stat.overall.branch-miss-rate% 28.72 ? 2% +1.5 30.24 ? 2% perf-stat.overall.cache-miss-rate% 1.49 +5.2% 1.57 perf-stat.overall.cpi 0.15 -0.0 0.14 perf-stat.overall.dTLB-store-miss-rate% 0.67 -4.9% 0.64 perf-stat.overall.ipc 78.18 ? 2% -5.2 72.99 ? 4% perf-stat.overall.node-store-miss-rate% 3.047e+09 -4.2% 2.919e+09 perf-stat.ps.branch-instructions 1.556e+08 -2.6% 1.516e+08 perf-stat.ps.cache-references 1050526 ? 2% -6.7% 979856 ? 2% perf-stat.ps.dTLB-load-misses 3.77e+09 -4.7% 3.594e+09 perf-stat.ps.dTLB-loads 3235246 -8.6% 2957606 perf-stat.ps.dTLB-store-misses 2.22e+09 -6.3% 2.081e+09 perf-stat.ps.dTLB-stores 1.46e+10 -4.4% 1.396e+10 perf-stat.ps.instructions 416143 -8.6% 380496 perf-stat.ps.minor-faults 7187567 +5.8% 7604602 perf-stat.ps.node-load-misses 6766067 -3.1% 6554471 perf-stat.ps.node-store-misses 416143 -8.6% 380496 perf-stat.ps.page-faults 9.202e+11 -4.5% 8.784e+11 perf-stat.total.instructions 45.38 -3.9 41.44 perf-profile.calltrace.cycles-pp.syscall 44.32 -3.9 40.44 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.syscall 44.13 -3.9 40.26 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall 22.21 -1.9 20.27 perf-profile.calltrace.cycles-pp.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall 21.62 -1.9 19.69 perf-profile.calltrace.cycles-pp.iterate_dir.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall 21.60 -1.9 19.68 perf-profile.calltrace.cycles-pp.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall 13.82 ? 3% -1.9 11.91 ? 3% perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 21.14 -1.9 19.24 perf-profile.calltrace.cycles-pp.iterate_dir.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall 5.33 ? 6% -0.9 4.40 ? 6% perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_openat.do_filp_open.do_sys_openat2 3.71 ? 7% -0.7 2.98 ? 7% perf-profile.calltrace.cycles-pp.kernfs_iop_permission.inode_permission.link_path_walk.path_openat.do_filp_open 6.19 ? 2% -0.6 5.63 ? 2% perf-profile.calltrace.cycles-pp.walk_component.link_path_walk.path_openat.do_filp_open.do_sys_openat2 4.50 ? 2% -0.5 4.00 ? 4% perf-profile.calltrace.cycles-pp.lookup_fast.walk_component.link_path_walk.path_openat.do_filp_open 4.42 ? 2% -0.4 3.98 ? 2% perf-profile.calltrace.cycles-pp.proc_readdir_de.proc_tgid_net_readdir.iterate_dir.__x64_sys_getdents64.do_syscall_64 4.48 ? 2% -0.4 4.05 ? 2% perf-profile.calltrace.cycles-pp.proc_tgid_net_readdir.iterate_dir.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe 4.50 ? 2% -0.4 4.08 ? 3% perf-profile.calltrace.cycles-pp.proc_tgid_net_readdir.iterate_dir.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe 4.41 ? 2% -0.4 4.00 ? 3% perf-profile.calltrace.cycles-pp.proc_readdir_de.proc_tgid_net_readdir.iterate_dir.__x64_sys_getdents.do_syscall_64 7.10 -0.4 6.70 ? 2% perf-profile.calltrace.cycles-pp.open_last_lookups.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 1.85 ? 9% -0.3 1.52 ? 10% perf-profile.calltrace.cycles-pp.down_read.kernfs_iop_permission.inode_permission.link_path_walk.path_openat 1.57 ? 6% -0.3 1.23 ? 6% perf-profile.calltrace.cycles-pp.up_read.kernfs_iop_permission.inode_permission.link_path_walk.path_openat 0.96 ? 6% -0.3 0.64 ? 15% perf-profile.calltrace.cycles-pp.scan_positives.dcache_readdir.iterate_dir.__x64_sys_getdents64.do_syscall_64 1.36 ? 5% -0.3 1.08 ? 5% perf-profile.calltrace.cycles-pp.step_into.link_path_walk.path_openat.do_filp_open.do_sys_openat2 1.95 ? 4% -0.3 1.68 ? 6% perf-profile.calltrace.cycles-pp.kernfs_dop_revalidate.lookup_fast.walk_component.link_path_walk.path_openat 1.32 ? 4% -0.3 1.05 ? 12% perf-profile.calltrace.cycles-pp.dcache_readdir.iterate_dir.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.94 ? 4% -0.3 0.67 ? 12% perf-profile.calltrace.cycles-pp.scan_positives.dcache_readdir.iterate_dir.__x64_sys_getdents.do_syscall_64 2.82 ? 3% -0.3 2.55 ? 2% perf-profile.calltrace.cycles-pp.dput.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare 1.32 ? 3% -0.3 1.06 ? 11% perf-profile.calltrace.cycles-pp.dcache_readdir.iterate_dir.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.76 ? 6% -0.3 0.50 ? 44% perf-profile.calltrace.cycles-pp.dput.step_into.link_path_walk.path_openat.do_filp_open 2.35 ? 2% -0.2 2.12 perf-profile.calltrace.cycles-pp.dentry_kill.dput.__fput.task_work_run.exit_to_user_mode_loop 2.62 ? 2% -0.2 2.41 ? 4% perf-profile.calltrace.cycles-pp.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 0.56 ? 3% -0.2 0.34 ? 70% perf-profile.calltrace.cycles-pp.strncpy_from_user.getname_flags.do_sys_openat2.__x64_sys_openat.do_syscall_64 1.38 ? 5% -0.2 1.17 ? 6% perf-profile.calltrace.cycles-pp.down_read.kernfs_dop_revalidate.lookup_fast.walk_component.link_path_walk 2.06 ? 2% -0.2 1.86 perf-profile.calltrace.cycles-pp.__dentry_kill.dentry_kill.dput.__fput.task_work_run 2.44 ? 2% -0.2 2.26 ? 5% perf-profile.calltrace.cycles-pp.do_vmi_align_munmap.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk 2.34 -0.2 2.17 ? 5% perf-profile.calltrace.cycles-pp.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault 2.02 ? 2% -0.1 1.87 ? 3% perf-profile.calltrace.cycles-pp.lookup_fast.open_last_lookups.path_openat.do_filp_open.do_sys_openat2 1.24 ? 2% -0.1 1.10 ? 2% perf-profile.calltrace.cycles-pp.evict.__dentry_kill.dentry_kill.dput.__fput 1.28 ? 2% -0.1 1.16 ? 5% perf-profile.calltrace.cycles-pp._raw_spin_lock.__d_lookup.d_hash_and_lookup.proc_fill_cache.proc_pident_readdir 1.52 ? 2% -0.1 1.40 ? 2% perf-profile.calltrace.cycles-pp.proc_readdir_de.iterate_dir.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe 1.10 ? 3% -0.1 0.99 ? 5% perf-profile.calltrace.cycles-pp.security_file_alloc.init_file.alloc_empty_file.path_openat.do_filp_open 0.90 ? 3% -0.1 0.79 ? 5% perf-profile.calltrace.cycles-pp.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file.path_openat 0.68 -0.1 0.57 ? 6% perf-profile.calltrace.cycles-pp.apparmor_file_permission.security_file_permission.iterate_dir.__x64_sys_getdents.do_syscall_64 1.58 ? 3% -0.1 1.48 ? 6% perf-profile.calltrace.cycles-pp.unmap_region.do_vmi_align_munmap.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.71 -0.1 0.61 ? 6% perf-profile.calltrace.cycles-pp.security_file_permission.iterate_dir.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe 0.76 ? 5% -0.1 0.67 ? 4% perf-profile.calltrace.cycles-pp.security_file_free.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare 1.14 ? 3% -0.1 1.06 ? 5% perf-profile.calltrace.cycles-pp.security_file_open.do_dentry_open.do_open.path_openat.do_filp_open 0.74 ? 5% -0.1 0.66 ? 4% perf-profile.calltrace.cycles-pp.apparmor_file_free_security.security_file_free.__fput.task_work_run.exit_to_user_mode_loop 0.61 ? 4% -0.1 0.55 perf-profile.calltrace.cycles-pp._raw_read_lock.proc_readdir_de.iterate_dir.__x64_sys_getdents64.do_syscall_64 0.60 ? 2% -0.1 0.54 ? 5% perf-profile.calltrace.cycles-pp._raw_read_lock.proc_readdir_de.iterate_dir.__x64_sys_getdents.do_syscall_64 0.63 ? 3% -0.1 0.58 ? 5% perf-profile.calltrace.cycles-pp.vma_alloc_folio.do_anonymous_page.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 0.66 -0.1 0.60 ? 6% perf-profile.calltrace.cycles-pp.sync_regs.asm_exc_page_fault 0.00 +1.5 1.50 ? 18% perf-profile.calltrace.cycles-pp.osq_lock.__mutex_lock.create_dentry.dcache_dir_open_wrapper.do_dentry_open 0.00 +2.1 2.14 ? 16% perf-profile.calltrace.cycles-pp.__mutex_lock.create_dentry.dcache_dir_open_wrapper.do_dentry_open.do_open 0.00 +2.4 2.41 ? 17% perf-profile.calltrace.cycles-pp.osq_lock.__mutex_lock.eventfs_release.__fput.task_work_run 0.00 +2.8 2.76 ? 14% perf-profile.calltrace.cycles-pp.create_dentry.dcache_dir_open_wrapper.do_dentry_open.do_open.path_openat 3.66 +3.1 6.75 ? 5% perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat 2.45 ? 2% +3.2 5.69 ? 6% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2 0.00 +3.4 3.35 ? 13% perf-profile.calltrace.cycles-pp.dcache_dir_open_wrapper.do_dentry_open.do_open.path_openat.do_filp_open 0.00 +3.4 3.36 ? 17% perf-profile.calltrace.cycles-pp.__mutex_lock.eventfs_release.__fput.task_work_run.exit_to_user_mode_loop 6.22 +4.0 10.27 ? 5% perf-profile.calltrace.cycles-pp.__close 5.87 +4.1 9.94 ? 6% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close 5.82 +4.1 9.88 ? 6% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 4.80 +4.1 8.93 ? 7% perf-profile.calltrace.cycles-pp.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe 4.85 +4.1 8.98 ? 7% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 4.82 +4.1 8.96 ? 7% perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close 4.65 +4.1 8.79 ? 7% perf-profile.calltrace.cycles-pp.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 4.16 ? 2% +4.2 8.32 ? 7% perf-profile.calltrace.cycles-pp.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode 0.00 +4.4 4.41 ? 15% perf-profile.calltrace.cycles-pp.eventfs_release.__fput.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare 45.79 -4.0 41.83 perf-profile.children.cycles-pp.syscall 42.82 -3.8 38.98 perf-profile.children.cycles-pp.iterate_dir 22.24 -1.9 20.30 perf-profile.children.cycles-pp.__x64_sys_getdents 21.62 -1.9 19.70 perf-profile.children.cycles-pp.__x64_sys_getdents64 13.87 ? 3% -1.9 11.95 ? 3% perf-profile.children.cycles-pp.link_path_walk 11.85 ? 4% -1.3 10.53 ? 3% perf-profile.children.cycles-pp._raw_spin_lock 11.98 ? 2% -1.1 10.86 ? 2% perf-profile.children.cycles-pp.proc_readdir_de 6.13 ? 6% -1.0 5.10 ? 6% perf-profile.children.cycles-pp.inode_permission 5.63 ? 10% -1.0 4.62 ? 7% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath 8.98 ? 2% -0.8 8.13 ? 2% perf-profile.children.cycles-pp.proc_tgid_net_readdir 4.32 ? 7% -0.8 3.50 ? 7% perf-profile.children.cycles-pp.kernfs_iop_permission 6.58 ? 2% -0.7 5.92 ? 3% perf-profile.children.cycles-pp.lookup_fast 1.91 ? 5% -0.6 1.32 ? 13% perf-profile.children.cycles-pp.scan_positives 6.23 ? 2% -0.6 5.66 ? 2% perf-profile.children.cycles-pp.walk_component 2.65 ? 3% -0.5 2.12 ? 11% perf-profile.children.cycles-pp.dcache_readdir 2.72 ? 4% -0.5 2.19 ? 5% perf-profile.children.cycles-pp.lockref_put_or_lock 7.41 -0.5 6.93 ? 2% perf-profile.children.cycles-pp.dput 7.12 -0.4 6.71 ? 2% perf-profile.children.cycles-pp.open_last_lookups 4.04 ? 3% -0.4 3.66 ? 2% perf-profile.children.cycles-pp._raw_read_lock 1.78 ? 5% -0.4 1.40 ? 5% perf-profile.children.cycles-pp.step_into 2.49 ? 3% -0.3 2.15 ? 6% perf-profile.children.cycles-pp.kernfs_dop_revalidate 2.64 -0.2 2.42 ? 4% perf-profile.children.cycles-pp.alloc_empty_file 2.46 ? 2% -0.2 2.28 ? 5% perf-profile.children.cycles-pp.do_vmi_align_munmap 2.37 -0.2 2.20 ? 5% perf-profile.children.cycles-pp.handle_mm_fault 2.66 ? 2% -0.2 2.50 ? 2% perf-profile.children.cycles-pp.dentry_kill 1.28 -0.2 1.12 ? 5% perf-profile.children.cycles-pp.security_file_permission 1.20 -0.1 1.06 ? 6% perf-profile.children.cycles-pp.apparmor_file_permission 1.27 ? 2% -0.1 1.13 ? 2% perf-profile.children.cycles-pp.evict 1.54 ? 2% -0.1 1.41 ? 3% perf-profile.children.cycles-pp.filldir64 0.90 ? 12% -0.1 0.78 ? 3% perf-profile.children.cycles-pp.lockref_get_not_dead 1.01 ? 11% -0.1 0.89 ? 3% perf-profile.children.cycles-pp.__legitimize_path 0.99 ? 11% -0.1 0.88 ? 2% perf-profile.children.cycles-pp.try_to_unlazy 1.11 ? 3% -0.1 1.00 ? 4% perf-profile.children.cycles-pp.security_file_alloc 2.24 ? 2% -0.1 2.13 perf-profile.children.cycles-pp.__dentry_kill 0.91 ? 3% -0.1 0.80 ? 5% perf-profile.children.cycles-pp.apparmor_file_alloc_security 1.58 ? 3% -0.1 1.48 ? 6% perf-profile.children.cycles-pp.unmap_region 0.77 ? 5% -0.1 0.68 ? 4% perf-profile.children.cycles-pp.security_file_free 0.75 ? 5% -0.1 0.66 ? 4% perf-profile.children.cycles-pp.apparmor_file_free_security 0.33 ? 7% -0.1 0.26 ? 4% perf-profile.children.cycles-pp.__traverse_mounts 0.43 ? 6% -0.1 0.36 ? 6% perf-profile.children.cycles-pp.generic_permission 0.60 ? 5% -0.1 0.54 ? 4% perf-profile.children.cycles-pp.pde_put 0.96 -0.1 0.90 ? 4% perf-profile.children.cycles-pp.__entry_text_start 0.56 ? 4% -0.1 0.51 ? 7% perf-profile.children.cycles-pp.strncpy_from_user 0.64 ? 3% -0.1 0.59 ? 4% perf-profile.children.cycles-pp.vma_alloc_folio 0.42 ? 8% -0.1 0.37 ? 5% perf-profile.children.cycles-pp.strlcat 0.42 ? 5% -0.1 0.37 ? 8% perf-profile.children.cycles-pp.zap_pte_range 0.43 ? 4% -0.0 0.38 ? 8% perf-profile.children.cycles-pp.zap_pmd_range 0.44 ? 5% -0.0 0.40 ? 6% perf-profile.children.cycles-pp.unmap_page_range 0.33 ? 4% -0.0 0.29 ? 3% perf-profile.children.cycles-pp.proc_evict_inode 0.14 ? 4% -0.0 0.10 ? 11% perf-profile.children.cycles-pp.set_nlink 0.23 ? 6% -0.0 0.20 ? 7% perf-profile.children.cycles-pp.inode_wait_for_writeback 0.26 ? 4% -0.0 0.24 ? 5% perf-profile.children.cycles-pp.get_proc_task_net 0.10 ? 8% -0.0 0.07 ? 20% perf-profile.children.cycles-pp.proc_match 0.30 ? 2% -0.0 0.28 ? 3% perf-profile.children.cycles-pp.stress_time_now 0.13 ? 5% -0.0 0.11 ? 6% perf-profile.children.cycles-pp.try_to_wake_up 0.10 ? 5% -0.0 0.08 ? 8% perf-profile.children.cycles-pp.mas_wr_store_entry 0.08 ? 9% +0.0 0.10 ? 5% perf-profile.children.cycles-pp.get_partial_node 0.25 ? 10% +0.1 0.30 ? 5% perf-profile.children.cycles-pp.d_alloc_cursor 0.60 ? 2% +0.1 0.67 ? 4% perf-profile.children.cycles-pp.__call_rcu_common 0.16 ? 12% +0.1 0.28 ? 9% perf-profile.children.cycles-pp.dcache_dir_close 1.26 ? 2% +0.2 1.44 ? 3% perf-profile.children.cycles-pp.lockref_put_return 0.00 +0.2 0.20 ? 14% perf-profile.children.cycles-pp.osq_unlock 0.45 ? 4% +0.3 0.76 ? 2% perf-profile.children.cycles-pp.lockref_get 0.00 +0.6 0.63 ? 14% perf-profile.children.cycles-pp.mutex_spin_on_owner 0.32 ? 8% +0.8 1.13 ? 8% perf-profile.children.cycles-pp.mutex_lock 0.14 ? 6% +1.0 1.09 ? 11% perf-profile.children.cycles-pp.mutex_unlock 0.00 +2.8 2.77 ? 14% perf-profile.children.cycles-pp.create_dentry 3.67 +3.1 6.77 ? 5% perf-profile.children.cycles-pp.do_open 2.48 ? 3% +3.2 5.72 ? 6% perf-profile.children.cycles-pp.do_dentry_open 0.00 +3.4 3.36 ? 13% perf-profile.children.cycles-pp.dcache_dir_open_wrapper 0.00 +3.9 3.92 ? 17% perf-profile.children.cycles-pp.osq_lock 6.34 +4.0 10.38 ? 5% perf-profile.children.cycles-pp.__close 5.09 +4.1 9.19 ? 6% perf-profile.children.cycles-pp.syscall_exit_to_user_mode 4.94 +4.1 9.06 ? 7% perf-profile.children.cycles-pp.exit_to_user_mode_prepare 4.83 +4.1 8.96 ? 7% perf-profile.children.cycles-pp.exit_to_user_mode_loop 4.68 +4.1 8.82 ? 7% perf-profile.children.cycles-pp.task_work_run 4.19 ? 2% +4.2 8.35 ? 7% perf-profile.children.cycles-pp.__fput 0.00 +4.4 4.42 ? 14% perf-profile.children.cycles-pp.eventfs_release 0.00 +5.5 5.51 ? 16% perf-profile.children.cycles-pp.__mutex_lock 5.48 ? 10% -1.0 4.48 ? 8% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath 5.30 ? 3% -0.6 4.74 ? 2% perf-profile.self.cycles-pp.proc_readdir_de 3.89 ? 3% -0.4 3.52 ? 2% perf-profile.self.cycles-pp._raw_read_lock 1.62 ? 4% -0.4 1.27 ? 7% perf-profile.self.cycles-pp.lockref_put_or_lock 1.02 ? 3% -0.1 0.87 ? 6% perf-profile.self.cycles-pp.inode_permission 1.10 -0.1 0.96 ? 6% perf-profile.self.cycles-pp.apparmor_file_permission 1.24 -0.1 1.14 ? 3% perf-profile.self.cycles-pp.filldir64 0.86 ? 3% -0.1 0.76 ? 5% perf-profile.self.cycles-pp.apparmor_file_alloc_security 1.10 ? 3% -0.1 1.01 ? 5% perf-profile.self.cycles-pp.apparmor_file_open 0.72 ? 4% -0.1 0.64 ? 4% perf-profile.self.cycles-pp.apparmor_file_free_security 0.57 ? 5% -0.1 0.50 ? 6% perf-profile.self.cycles-pp.pde_put 0.35 ? 9% -0.1 0.28 ? 4% perf-profile.self.cycles-pp.generic_permission 0.44 ? 6% -0.1 0.38 ? 5% perf-profile.self.cycles-pp.link_path_walk 0.51 ? 7% -0.1 0.45 ? 6% perf-profile.self.cycles-pp.do_dentry_open 0.42 ? 3% -0.1 0.36 ? 6% perf-profile.self.cycles-pp.d_alloc_parallel 0.40 ? 7% -0.1 0.35 ? 5% perf-profile.self.cycles-pp.strlcat 0.44 ? 6% -0.0 0.40 ? 3% perf-profile.self.cycles-pp.proc_lookup_de 0.13 ? 6% -0.0 0.09 ? 11% perf-profile.self.cycles-pp.set_nlink 0.26 ? 4% -0.0 0.23 ? 5% perf-profile.self.cycles-pp.__legitimize_mnt 0.14 ? 6% -0.0 0.12 ? 3% perf-profile.self.cycles-pp.get_proc_task_net 0.11 ? 6% -0.0 0.09 ? 7% perf-profile.self.cycles-pp.__x64_sys_getdents 0.12 ? 4% -0.0 0.10 ? 10% perf-profile.self.cycles-pp.perf_event_mmap_output 0.08 ? 8% -0.0 0.06 ? 6% perf-profile.self.cycles-pp.do_anonymous_page 0.13 ? 4% +0.0 0.17 ? 8% perf-profile.self.cycles-pp.rcu_segcblist_enqueue 0.28 ? 9% +0.1 0.36 ? 12% perf-profile.self.cycles-pp.dcache_readdir 1.23 ? 3% +0.2 1.40 ? 4% perf-profile.self.cycles-pp.lockref_put_return 0.00 +0.2 0.20 ? 14% perf-profile.self.cycles-pp.osq_unlock 0.40 ? 3% +0.3 0.71 ? 2% perf-profile.self.cycles-pp.lockref_get 0.00 +0.6 0.62 ? 15% perf-profile.self.cycles-pp.mutex_spin_on_owner 0.00 +0.8 0.76 ? 16% perf-profile.self.cycles-pp.__mutex_lock 0.24 ? 10% +0.8 1.00 ? 9% perf-profile.self.cycles-pp.mutex_lock 0.13 ? 7% +0.9 1.06 ? 11% perf-profile.self.cycles-pp.mutex_unlock 0.00 +3.9 3.90 ? 17% perf-profile.self.cycles-pp.osq_lock 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. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki