From: Yaxin Wang <wang.yaxin@xxxxxxxxxx> Update delay-accounting.rst to include the 'delay max' in the output of getdelays, and fix some spelling errors before. Signed-off-by: Yaxin Wang <wang.yaxin@xxxxxxxxxx> Signed-off-by: Jiang Kun <jiang.kun2@xxxxxxxxxx> --- Some fixes according to: https://lore.kernel.org/all/20241203170816.3fe81941fe1866ca1672eba8@xxxxxxxxxxxxxxxxxxxx/ 1.fix some spelling errors 2.update Documentation/accounting/delay-accounting.rst Documentation/accounting/delay-accounting.rst | 42 +++++++++---------- kernel/delayacct.c | 2 +- 2 files changed, 22 insertions(+), 22 deletions(-) diff --git a/Documentation/accounting/delay-accounting.rst b/Documentation/accounting/delay-accounting.rst index f61c01fc376e..8a0277428ccf 100644 --- a/Documentation/accounting/delay-accounting.rst +++ b/Documentation/accounting/delay-accounting.rst @@ -100,29 +100,29 @@ Get delays, since system boot, for pid 10:: # ./getdelays -d -p 10 (output similar to next case) -Get sum of delays, since system boot, for all pids with tgid 5:: +Get sum and peak of delays, since system boot, for all pids with tgid 242:: - # ./getdelays -d -t 5 + bash-4.4# ./getdelays -d -t 242 print delayacct stats ON - TGID 5 - - - CPU count real total virtual total delay total delay average - 8 7000000 6872122 3382277 0.423ms - IO count delay total delay average - 0 0 0.000ms - SWAP count delay total delay average - 0 0 0.000ms - RECLAIM count delay total delay average - 0 0 0.000ms - THRASHING count delay total delay average - 0 0 0.000ms - COMPACT count delay total delay average - 0 0 0.000ms - WPCOPY count delay total delay average - 0 0 0.000ms - IRQ count delay total delay average - 0 0 0.000ms + TGID 242 + + + CPU count real total virtual total delay total delay average delay max + 239 296000000 307724885 1127792 0.005ms 0.238382ms + IO count delay total delay average delay max + 0 0 0.000ms 0.000000ms + SWAP count delay total delay average delay max + 0 0 0.000ms 0.000000ms + RECLAIM count delay total delay average delay max + 0 0 0.000ms 0.000000ms + THRASHING count delay total delay average delay max + 0 0 0.000ms 0.000000ms + COMPACT count delay total delay average delay max + 0 0 0.000ms 0.000000ms + WPCOPY count delay total delay average delay max + 230 19100476 0.083ms 0.383822ms + IRQ count delay total delay average delay max + 0 0 0.000ms 0.000000ms Get IO accounting for pid 1, it works only with -p:: diff --git a/kernel/delayacct.c b/kernel/delayacct.c index d64ad2a48b4f..23212a0c88e4 100644 --- a/kernel/delayacct.c +++ b/kernel/delayacct.c @@ -93,7 +93,7 @@ void __delayacct_tsk_init(struct task_struct *tsk) /* * Finish delay accounting for a statistic using its timestamps (@start), - * accumalator (@total) and @count + * accumulator (@total) and @count */ static void delayacct_end(raw_spinlock_t *lock, u64 *start, u64 *total, u32 *count, u64 *max) { -- 2.25.1
