David Wang 84b9749a3a proc/softirqs: replace seq_printf with seq_put_decimal_ull_width ...

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>

2024-11-07 07:40:14 -10:00

..

array.c

fs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats

2024-02-07 21:20:33 -08:00

base.c

Merge tag 'sched-core-2024-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2024-09-19 15:55:58 +02:00

bootconfig.c

fs/proc: Skip bootloader comment if no embedded kernel parameters

2024-04-09 23:36:18 +09:00

cmdline.c

proc: mark /proc/cmdline as permanent

2023-02-02 22:50:02 -08:00

consoles.c

proc: Add nbcon support for /proc/consoles

2024-09-04 15:56:33 +02:00

cpuinfo.c

x86/aperfmperf: Replace aperfmperf_get_khz()

2022-04-27 20:22:19 +02:00

devices.c

proc: mark more files as permanent

2022-10-03 14:21:45 -07:00

fd.c

proc: Fix W=1 build kernel-doc warning

2024-10-18 13:02:47 +02:00

fd.h

fs: port ->permission() to pass mnt_idmap

2023-01-19 09:24:28 +01:00

generic.c

proc: fold kmalloc() + strcpy() into kmemdup()

2024-09-09 10:51:20 +02:00

inode.c

proc: use __auto_type more

2024-09-17 01:11:20 -07:00

internal.h

Merge tag 'mm-stable-2024-09-20-02-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2024-09-21 07:29:05 -07:00

interrupts.c

proc: introduce proc_create_seq{,_data}

2018-05-16 07:23:35 +02:00

Kconfig

crash: split vmcoreinfo exporting code out from crash_core.c

2024-02-23 17:48:22 -08:00

kcore.c

fs/proc/kcore.c: allow translation of physical memory addresses

2024-10-09 12:47:19 -07:00

kmsg.c

Merge tag 'printk-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

2022-10-10 11:24:19 -07:00

loadavg.c

proc: mark more files as permanent

2022-10-03 14:21:45 -07:00

Makefile

kbuild: make -Woverride-init warnings more consistent

2024-03-31 11:32:26 +09:00

meminfo.c

mm: zswap: optimize zswap pool size tracking

2024-04-25 20:55:47 -07:00

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

fs: create helper file_user_path() for user displayed mapped file path

2023-10-19 11:03:15 +02:00

page.c

x86: remove PG_uncached

2024-09-03 21:15:46 -07:00

proc_net.c

fs: Add kernel-doc comments to proc_create_net_data_write()

2024-03-26 09:01:18 +01:00

proc_sysctl.c

sysctl: avoid spurious permanent empty tables

2024-09-02 10:37:37 +02:00

proc_tty.c

proc: delete unused <linux/uaccess.h> includes

2022-07-17 17:31:39 -07:00

root.c

procfs: make freeing proc_fs_info rcu-delayed

2024-02-25 02:10:32 -05:00

self.c

proc: convert to new timestamp accessors

2023-10-18 14:08:26 +02:00

softirqs.c

proc/softirqs: replace seq_printf with seq_put_decimal_ull_width

2024-11-07 07:40:14 -10:00

stat.c

proc/stat: remove arch_idle_time()

2023-04-18 16:39:33 -07:00

task_mmu.c

fs/proc: fix build with GCC 15 due to -Werror=unterminated-string-initialization

2024-10-17 00:28:07 -07:00

task_nommu.c

Merge tag 'vfs-6.7.misc' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs

2023-10-30 09:14:19 -10:00

thread_self.c

proc: convert to new timestamp accessors

2023-10-18 14:08:26 +02:00

uptime.c

proc: mark more files as permanent

2022-10-03 14:21:45 -07:00

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: mark more files as permanent

2022-10-03 14:21:45 -07:00

vmcore.c

fs/proc: fix softlockup in __read_vmcore

2024-05-11 15:51:44 -07:00