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David Wang affd04aaef proc/softirqs: replace seq_printf with seq_put_decimal_ull_width ... [ Upstream commit 84b9749a3a ] seq_printf is costy, on a system with n CPUs, reading /proc/softirqs would yield 10*n decimal values, and the extra cost parsing format string grows linearly with number of cpus. Replace seq_printf with seq_put_decimal_ull_width have significant performance improvement. On an 8CPUs system, reading /proc/softirqs show ~40% performance gain with this patch. Signed-off-by: David Wang <00107082@163.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2024-12-14 19:50:41 +01:00
..
array.c	fs/proc: do_task_stat: move thread_group_cputime_adjusted() outside of lock_task_sighand()	2024-03-15 10:48:22 -04:00
base.c	proc: add config & param to block forcing mem writes	2024-10-17 15:11:27 +02:00
bootconfig.c	proc: bootconfig: Add null pointer check	2022-04-08 14:24:12 +02:00
cmdline.c	proc: introduce proc_create_single{,_data}	2018-05-16 07:23:35 +02:00
consoles.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191	2019-05-30 11:29:21 -07:00
cpuinfo.c	proc/cpuinfo: switch to ->read_iter	2020-11-06 10:05:18 -08:00
devices.c	block: move block-related definitions out of fs.h	2020-06-24 09:16:02 -06:00
fd.c	procfs: prevent unprivileged processes accessing fdinfo dir	2022-05-18 10:26:50 +02:00
fd.h	fs: make helpers idmap mount aware	2021-01-24 14:27:20 +01:00
generic.c	proc: fix dentry/inode overinstantiating under /proc/${pid}/net	2022-06-09 10:23:10 +02:00
inode.c	proc: delete redundant subset=pid check	2021-05-06 19:24:11 -07:00
internal.h	fs: make helpers idmap mount aware	2021-01-24 14:27:20 +01:00
interrupts.c	proc: introduce proc_create_seq{,_data}	2018-05-16 07:23:35 +02:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
kcore.c	fs/proc/kcore: use page_offline_(freeze|thaw)	2021-06-30 20:47:28 -07:00
kmsg.c	proc: faster open/read/close with "permanent" files	2020-04-07 10:43:42 -07:00
loadavg.c	sched: Make nr_running() return 32-bit value	2021-05-12 21:34:14 +02:00
Makefile	proc: bootconfig: Add /proc/bootconfig to show boot config list	2020-01-13 13:19:39 -05:00
meminfo.c	mm: memcontrol: convert NR_FILE_PMDMAPPED account to pages	2021-02-24 13:38:29 -08:00
namespaces.c	Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-01-29 11:20:24 -08:00
nommu.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
page.c	mm: Add PG_arch_2 page flag	2020-09-04 12:46:06 +01:00
proc_net.c	proc: fix dentry/inode overinstantiating under /proc/${pid}/net	2022-06-09 10:23:10 +02:00
proc_sysctl.c	sysctl: always initialize i_uid/i_gid	2024-08-19 05:45:28 +02:00
proc_tty.c	tty: replace ->proc_fops with ->proc_show	2018-05-16 07:24:30 +02:00
root.c	fs: make helpers idmap mount aware	2021-01-24 14:27:20 +01:00
self.c	Revert "proc: don't allow async path resolution of /proc/self components"	2021-02-23 20:32:11 -07:00
softirqs.c	proc/softirqs: replace seq_printf with seq_put_decimal_ull_width	2024-12-14 19:50:41 +01:00
stat.c	fs/proc/uptime.c: Fix idle time reporting in /proc/uptime	2021-11-18 19:16:13 +01:00
task_mmu.c	fs/proc/task_mmu: indicate PM_FILE for PMD-mapped file THP	2024-08-19 05:45:09 +02:00
task_nommu.c	proc: nommu: /proc/<pid>/maps: release mmap read lock	2023-10-06 13:18:22 +02:00
thread_self.c	Revert "proc: don't allow async path resolution of /proc/thread-self components"	2021-02-23 20:32:11 -07:00
uptime.c	fs/proc/uptime.c: Fix idle time reporting in /proc/uptime	2021-11-18 19:16:13 +01:00
util.c	fs/proc/util.c: include fs/proc/internal.h for name_to_int()	2019-01-04 13:13:45 -08:00
version.c	proc: introduce proc_create_single{,_data}	2018-05-16 07:23:35 +02:00
vmcore.c	fs/proc: fix compile warning about variable 'vmcore_mmap_ops'	2024-11-14 13:13:41 +01:00