* [LTP] [PATCH v2] swapping01: make use of remaining runtime in test looping
@ 2022-06-20 6:34 Li Wang
2022-06-22 7:25 ` Cyril Hrubis
2022-06-23 8:30 ` Jan Stancek
0 siblings, 2 replies; 5+ messages in thread
From: Li Wang @ 2022-06-20 6:34 UTC (permalink / raw)
To: ltp
Here go with default to 10 minutes for max_runtime. At the same time limit
the loop that waits for the swap usage to settle to run for a reminder
of max_runtime/2 instead of the hardcoded 30 seconds.
This fix can significantly improve timeouts on slower systems:
# free -h
total used free shared buff/cache available
Mem: 2.9Gi 1.1Gi 1.1Gi 20Mi 732Mi 1.5Gi
Swap: 2.0Gi 0B 2.0Gi
# time ./swapping01
tst_kconfig.c:82: TINFO: Parsing kernel config '/boot/config-4.18.0-309.el8.x86_64+debug'
tst_test.c:1528: TINFO: Timeout per run is 0h 02m 00s
swapping01.c:110: TINFO: available physical memory: 1545 MB
swapping01.c:113: TINFO: try to allocate: 2008 MB
swapping01.c:152: TPASS: no heavy swapping detected, 218 MB swapped.
...
real 0m34.241s
user 0m0.386s
sys 0m16.040s
Co-developed-by: Cyril Hrubis <chrubis@suse.cz>
Signed-off-by: Li Wang <liwang@redhat.com>
---
testcases/kernel/mem/swapping/swapping01.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/testcases/kernel/mem/swapping/swapping01.c b/testcases/kernel/mem/swapping/swapping01.c
index f6133cc0d..fc225e4a6 100644
--- a/testcases/kernel/mem/swapping/swapping01.c
+++ b/testcases/kernel/mem/swapping/swapping01.c
@@ -58,6 +58,7 @@ static long swap_free_init;
static long mem_over;
static long mem_over_max;
static pid_t pid;
+static unsigned int start_runtime;
static void test_swapping(void)
{
@@ -67,6 +68,8 @@ static void test_swapping(void)
FILE *file;
char line[PATH_MAX];
+ start_runtime = tst_remaining_runtime();
+
file = SAFE_FOPEN("/proc/swaps", "r");
while (fgets(line, sizeof(line), file)) {
if (strstr(line, "/dev/zram")) {
@@ -122,7 +125,7 @@ static void do_alloc(int allow_raise)
static void check_swapping(void)
{
- int status, i;
+ int status;
long swap_free_now, swapped;
/* wait child stop */
@@ -131,14 +134,14 @@ static void check_swapping(void)
tst_brk(TBROK, "child was not stopped.");
/* Still occupying memory, loop for a while */
- i = 0;
- while (i < 30) {
+ while (tst_remaining_runtime() > start_runtime/2) {
swap_free_now = SAFE_READ_MEMINFO("SwapFree:");
sleep(1);
- if (labs(swap_free_now - SAFE_READ_MEMINFO("SwapFree:")) < 10)
+ long diff = labs(swap_free_now - SAFE_READ_MEMINFO("SwapFree:"));
+ if (diff < 10)
break;
- i++;
+ tst_res(TINFO, "SwapFree difference %li", diff);
}
swapped = SAFE_READ_PROC_STATUS(pid, "VmSwap:");
@@ -159,6 +162,7 @@ static struct tst_test test = {
.needs_root = 1,
.forks_child = 1,
.min_mem_avail = 10,
+ .max_runtime = 600,
.test_all = test_swapping,
.needs_kconfigs = (const char *[]) {
"CONFIG_SWAP=y",
--
2.35.3
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [LTP] [PATCH v2] swapping01: make use of remaining runtime in test looping
2022-06-20 6:34 [LTP] [PATCH v2] swapping01: make use of remaining runtime in test looping Li Wang
@ 2022-06-22 7:25 ` Cyril Hrubis
2022-06-23 8:30 ` Jan Stancek
1 sibling, 0 replies; 5+ messages in thread
From: Cyril Hrubis @ 2022-06-22 7:25 UTC (permalink / raw)
To: Li Wang; +Cc: ltp
Hi!
Reviewed-by: Cyril Hrubis <chrubis@suse.cz>
--
Cyril Hrubis
chrubis@suse.cz
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [LTP] [PATCH v2] swapping01: make use of remaining runtime in test looping
2022-06-20 6:34 [LTP] [PATCH v2] swapping01: make use of remaining runtime in test looping Li Wang
2022-06-22 7:25 ` Cyril Hrubis
@ 2022-06-23 8:30 ` Jan Stancek
2022-06-23 8:33 ` Li Wang
1 sibling, 1 reply; 5+ messages in thread
From: Jan Stancek @ 2022-06-23 8:30 UTC (permalink / raw)
To: Li Wang; +Cc: LTP List
On Mon, Jun 20, 2022 at 8:35 AM Li Wang <liwang@redhat.com> wrote:
>
> Here go with default to 10 minutes for max_runtime. At the same time limit
> the loop that waits for the swap usage to settle to run for a reminder
> of max_runtime/2 instead of the hardcoded 30 seconds.
>
> This fix can significantly improve timeouts on slower systems:
>
> # free -h
> total used free shared buff/cache available
> Mem: 2.9Gi 1.1Gi 1.1Gi 20Mi 732Mi 1.5Gi
> Swap: 2.0Gi 0B 2.0Gi
>
> # time ./swapping01
> tst_kconfig.c:82: TINFO: Parsing kernel config '/boot/config-4.18.0-309.el8.x86_64+debug'
> tst_test.c:1528: TINFO: Timeout per run is 0h 02m 00s
> swapping01.c:110: TINFO: available physical memory: 1545 MB
> swapping01.c:113: TINFO: try to allocate: 2008 MB
> swapping01.c:152: TPASS: no heavy swapping detected, 218 MB swapped.
> ...
>
> real 0m34.241s
> user 0m0.386s
> sys 0m16.040s
>
> Co-developed-by: Cyril Hrubis <chrubis@suse.cz>
> Signed-off-by: Li Wang <liwang@redhat.com>
Acked-by: Jan Stancek <jstancek@redhat.com>
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [LTP] [PATCH v2] swapping01: make use of remaining runtime in test looping
2022-06-23 8:30 ` Jan Stancek
@ 2022-06-23 8:33 ` Li Wang
2022-06-23 8:36 ` Jan Stancek
0 siblings, 1 reply; 5+ messages in thread
From: Li Wang @ 2022-06-23 8:33 UTC (permalink / raw)
To: Jan Stancek; +Cc: LTP List
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Jan Stancek <jstancek@redhat.com> wrote:
> > Co-developed-by: Cyril Hrubis <chrubis@suse.cz>
> > Signed-off-by: Li Wang <liwang@redhat.com>
>
> Acked-by: Jan Stancek <jstancek@redhat.com>
>
Thanks for reviewing Jan, but seems a bit late.
I was pushing it together with your two patches a moment ago:).
https://github.com/linux-test-project/ltp/commit/3eb312e1f947782d8a48ff652429e2f81ce2fbca
--
Regards,
Li Wang
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[-- Attachment #2: Type: text/plain, Size: 60 bytes --]
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [LTP] [PATCH v2] swapping01: make use of remaining runtime in test looping
2022-06-23 8:33 ` Li Wang
@ 2022-06-23 8:36 ` Jan Stancek
0 siblings, 0 replies; 5+ messages in thread
From: Jan Stancek @ 2022-06-23 8:36 UTC (permalink / raw)
To: Li Wang; +Cc: LTP List
On Thu, Jun 23, 2022 at 10:34 AM Li Wang <liwang@redhat.com> wrote:
>
> Jan Stancek <jstancek@redhat.com> wrote:
>
>>
>> > Co-developed-by: Cyril Hrubis <chrubis@suse.cz>
>> > Signed-off-by: Li Wang <liwang@redhat.com>
>>
>> Acked-by: Jan Stancek <jstancek@redhat.com>
>
>
> Thanks for reviewing Jan, but seems a bit late.
> I was pushing it together with your two patches a moment ago:).
No worries, thanks for pushing my 2 patches as well.
>
> https://github.com/linux-test-project/ltp/commit/3eb312e1f947782d8a48ff652429e2f81ce2fbca
>
>
> --
> Regards,
> Li Wang
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-06-23 8:36 UTC | newest]
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2022-06-20 6:34 [LTP] [PATCH v2] swapping01: make use of remaining runtime in test looping Li Wang
2022-06-22 7:25 ` Cyril Hrubis
2022-06-23 8:30 ` Jan Stancek
2022-06-23 8:33 ` Li Wang
2022-06-23 8:36 ` Jan Stancek
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