[LTP] [PATCH] cpuset_memory_spread: change lowerlimit to 5000kb

[Martin Doucha]

Hi,

On 09. 06. 23 3:27, Hongchen Zhang wrote:
> When I test the cpuset_memory_spread case,this case FAIL too often.
> After dig into the code, I find out that the fowlloing things trigger
> the FAIL:
> 1) random events,the probability is very small and can be ignored
> 2) get_meminfo which before send signal to test_pid
> 3) account_memsinfo before result_check
> 
> About 2) and 3), we can increase the value of lowerlimit to keep
> the result as SUCCESS.After my testing, 5000kb is a reasonable value.

we're also seeing these failures but only on architectures like PowerPC 
with pagesize higher than the usual 4KB. On which architectures do you 
see failures and what's the pagesize there?

> Signed-off-by: Hongchen Zhang <zhanghongchen@loongson.cn>
> ---
>   .../cpuset_memory_spread_test/cpuset_memory_spread_testset.sh   | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/testcases/kernel/controllers/cpuset/cpuset_memory_spread_test/cpuset_memory_spread_testset.sh b/testcases/kernel/controllers/cpuset/cpuset_memory_spread_test/cpuset_memory_spread_testset.sh
> index e2767ef05..d33468525 100755
> --- a/testcases/kernel/controllers/cpuset/cpuset_memory_spread_test/cpuset_memory_spread_testset.sh
> +++ b/testcases/kernel/controllers/cpuset/cpuset_memory_spread_test/cpuset_memory_spread_testset.sh
> @@ -38,7 +38,7 @@ nr_mems=$N_NODES
>   # on which it is running. The other nodes' slab space has littler change.(less
>   # than 1000 kb).
>   upperlimit=10000
> -lowerlimit=2000
> +lowerlimit=5000
>   
>   cpus_all="$(seq -s, 0 $((nr_cpus-1)))"
>   mems_all="$(seq -s, 0 $((nr_mems-1)))"

-- 
Martin Doucha   mdoucha@suse.cz
SW Quality Engineer
SUSE LINUX, s.r.o.
CORSO IIa
Krizikova 148/34
186 00 Prague 8
Czech Republic