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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed a 2.6% regression of will-it-scale.per_thread_ops on: commit: 7e44d00a13ca5691caf4f7c46541ee60bf75b208 ("memcg: use mod_node_page_state to update stats") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master [still regression on linux-next/master 6987d58a9cbc5bd57c983baa514474a86c945d56] testcase: will-it-scale config: x86_64-rhel-9.4 compiler: gcc-14 test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory parameters: nr_task: 100% mode: thread test: page_fault2 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/202512101408.af3876df-lkp@intel.com Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20251210/202512101408.af3876df-lkp@intel.com ========================================================================================= compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase: gcc-14/performance/x86_64-rhel-9.4/thread/100%/debian-13-x86_64-20250902.cgz/lkp-icl-2sp7/page_fault2/will-it-scale commit: 3e700b715e ("selftests/mm: gup_test: fix comment regarding origin of FOLL_WRITE") 7e44d00a13 ("memcg: use mod_node_page_state to update stats") 3e700b715e1cef66 7e44d00a13ca5691caf4f7c4654 ---------------- --------------------------- %stddev %change %stddev \ | \ 3453930 -2.6% 3363916 will-it-scale.64.threads 53967 -2.6% 52560 will-it-scale.per_thread_ops 3453930 -2.6% 3363916 will-it-scale.workload 1.053e+09 -2.6% 1.025e+09 proc-vmstat.numa_hit 1.052e+09 -2.6% 1.025e+09 proc-vmstat.numa_local 1.05e+09 -2.6% 1.023e+09 proc-vmstat.pgalloc_normal 1.045e+09 -2.6% 1.018e+09 proc-vmstat.pgfault 1.05e+09 -2.6% 1.023e+09 proc-vmstat.pgfree 3.452e+09 -2.0% 3.383e+09 perf-stat.i.branch-instructions 0.45 +0.0 0.46 perf-stat.i.branch-miss-rate% 4.559e+08 -2.5% 4.446e+08 perf-stat.i.cache-misses 4.696e+08 -2.5% 4.58e+08 perf-stat.i.cache-references 3.88e+10 -2.4% 3.787e+10 perf-stat.i.cpu-cycles 1.741e+10 -1.5% 1.715e+10 perf-stat.i.instructions 107.43 -2.5% 104.76 perf-stat.i.metric.K/sec 3437960 -2.5% 3352362 perf-stat.i.minor-faults 3437961 -2.5% 3352362 perf-stat.i.page-faults 26.18 -34.0% 17.29 ± 70% perf-stat.overall.MPKI 3.441e+09 -34.7% 2.247e+09 ± 70% perf-stat.ps.branch-instructions 4.544e+08 -35.0% 2.953e+08 ± 70% perf-stat.ps.cache-misses 4.68e+08 -35.0% 3.042e+08 ± 70% perf-stat.ps.cache-references 3.867e+10 -34.9% 2.517e+10 ± 70% perf-stat.ps.cpu-cycles 1.736e+10 -34.4% 1.139e+10 ± 70% perf-stat.ps.instructions 3426140 -35.0% 2226448 ± 70% perf-stat.ps.minor-faults 3426140 -35.0% 2226448 ± 70% perf-stat.ps.page-faults 5.293e+12 -34.4% 3.471e+12 ± 70% perf-stat.total.instructions 92.62 -0.2 92.40 perf-profile.calltrace.cycles-pp.asm_exc_page_fault.testcase 1.39 +0.0 1.42 perf-profile.calltrace.cycles-pp.__page_cache_release.folios_put_refs.free_pages_and_swap_cache.__tlb_batch_free_encoded_pages.tlb_flush_mmu 1.89 +0.0 1.92 perf-profile.calltrace.cycles-pp.lru_add.folio_batch_move_lru.__folio_batch_add_and_move.set_pte_range.finish_fault 0.91 +0.0 0.95 perf-profile.calltrace.cycles-pp.lru_gen_del_folio.__page_cache_release.folios_put_refs.free_pages_and_swap_cache.__tlb_batch_free_encoded_pages 1.30 +0.0 1.35 perf-profile.calltrace.cycles-pp.folio_remove_rmap_ptes.zap_present_ptes.zap_pte_range.zap_pmd_range.unmap_page_range 2.38 +0.0 2.43 perf-profile.calltrace.cycles-pp.folios_put_refs.free_pages_and_swap_cache.__tlb_batch_free_encoded_pages.tlb_flush_mmu.zap_pte_range 1.36 +0.1 1.41 perf-profile.calltrace.cycles-pp.lru_gen_add_folio.lru_add.folio_batch_move_lru.__folio_batch_add_and_move.set_pte_range 4.49 +0.2 4.64 perf-profile.calltrace.cycles-pp.zap_present_ptes.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas 7.62 +0.2 7.79 perf-profile.calltrace.cycles-pp.unmap_page_range.unmap_vmas.vms_clear_ptes.vms_complete_munmap_vmas.do_vmi_align_munmap 7.62 +0.2 7.79 perf-profile.calltrace.cycles-pp.unmap_vmas.vms_clear_ptes.vms_complete_munmap_vmas.do_vmi_align_munmap.do_vmi_munmap 7.62 +0.2 7.79 perf-profile.calltrace.cycles-pp.zap_pmd_range.unmap_page_range.unmap_vmas.vms_clear_ptes.vms_complete_munmap_vmas 7.61 +0.2 7.78 perf-profile.calltrace.cycles-pp.zap_pte_range.zap_pmd_range.unmap_page_range.unmap_vmas.vms_clear_ptes 8.17 +0.2 8.34 perf-profile.calltrace.cycles-pp.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 8.17 +0.2 8.34 perf-profile.calltrace.cycles-pp.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 8.14 +0.2 8.31 perf-profile.calltrace.cycles-pp.vms_clear_ptes.vms_complete_munmap_vmas.do_vmi_align_munmap.do_vmi_munmap.__vm_munmap 8.14 +0.2 8.32 perf-profile.calltrace.cycles-pp.vms_complete_munmap_vmas.do_vmi_align_munmap.do_vmi_munmap.__vm_munmap.__x64_sys_munmap 8.17 +0.2 8.34 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap 8.17 +0.2 8.34 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__munmap 8.17 +0.2 8.34 perf-profile.calltrace.cycles-pp.__munmap 8.15 +0.2 8.32 perf-profile.calltrace.cycles-pp.do_vmi_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe 8.15 +0.2 8.32 perf-profile.calltrace.cycles-pp.do_vmi_align_munmap.do_vmi_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64 21.20 +0.3 21.46 perf-profile.calltrace.cycles-pp.finish_fault.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 90.18 -0.2 89.94 perf-profile.children.cycles-pp.testcase 86.53 -0.2 86.34 perf-profile.children.cycles-pp.asm_exc_page_fault 1.58 +0.0 1.63 perf-profile.children.cycles-pp.__page_cache_release 1.39 +0.0 1.44 perf-profile.children.cycles-pp.lru_gen_add_folio 1.07 +0.0 1.12 perf-profile.children.cycles-pp.lru_gen_del_folio 1.33 +0.0 1.38 perf-profile.children.cycles-pp.folio_remove_rmap_ptes 1.42 +0.1 1.48 ± 2% perf-profile.children.cycles-pp.__lruvec_stat_mod_folio 0.36 ± 2% +0.1 0.42 perf-profile.children.cycles-pp.__mod_lruvec_state 3.08 +0.1 3.16 perf-profile.children.cycles-pp.folios_put_refs 4.56 +0.1 4.71 perf-profile.children.cycles-pp.zap_present_ptes 7.64 +0.2 7.80 perf-profile.children.cycles-pp.unmap_page_range 7.64 +0.2 7.80 perf-profile.children.cycles-pp.unmap_vmas 7.64 +0.2 7.80 perf-profile.children.cycles-pp.zap_pmd_range 7.64 +0.2 7.80 perf-profile.children.cycles-pp.zap_pte_range 8.17 +0.2 8.34 perf-profile.children.cycles-pp.__x64_sys_munmap 8.14 +0.2 8.31 perf-profile.children.cycles-pp.vms_clear_ptes 8.17 +0.2 8.34 perf-profile.children.cycles-pp.__vm_munmap 8.15 +0.2 8.32 perf-profile.children.cycles-pp.vms_complete_munmap_vmas 8.17 +0.2 8.34 perf-profile.children.cycles-pp.__munmap 8.15 +0.2 8.32 perf-profile.children.cycles-pp.do_vmi_align_munmap 8.15 +0.2 8.33 perf-profile.children.cycles-pp.do_vmi_munmap 8.41 +0.2 8.59 perf-profile.children.cycles-pp.do_syscall_64 8.41 +0.2 8.59 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 21.41 +0.3 21.67 perf-profile.children.cycles-pp.finish_fault 0.00 +0.8 0.78 perf-profile.children.cycles-pp.mod_node_page_state 0.36 ± 3% -0.0 0.34 ± 2% perf-profile.self.cycles-pp.free_pages_and_swap_cache 0.53 ± 2% -0.0 0.50 perf-profile.self.cycles-pp.do_user_addr_fault 0.18 ± 2% -0.0 0.15 ± 2% perf-profile.self.cycles-pp.__page_cache_release 0.49 +0.0 0.53 ± 3% perf-profile.self.cycles-pp.folios_put_refs 3.07 +0.1 3.17 perf-profile.self.cycles-pp.zap_present_ptes 0.00 +0.7 0.73 perf-profile.self.cycles-pp.mod_node_page_state 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