From: Simon Xu <xu.simon@oracle.com>
To: gaowanlong@cn.fujitsu.com
Cc: ltp-list@lists.sourceforge.net
Subject: Re: [LTP] [PATCH] numa01.sh: fix error in getting number of CPUs
Date: Fri, 23 Nov 2012 13:51:31 +0800 [thread overview]
Message-ID: <50AF0EE3.1080904@oracle.com> (raw)
In-Reply-To: <50AF0DA9.1090908@cn.fujitsu.com>
On 2012/11/23 13:46, Wanlong Gao wrote:
> On 11/23/2012 01:42 PM, Simon Xu wrote:
>> test04 in numa01.sh is using a wrong method to get the number of CPUs.
>> This results in:
>>
>> numactl: cpu argument 9 is out of range
>>
>> awk: cmd. line:1: fatal: cannot open file `/proc/4116/stat' for reading
>> (No such file or directory)
>> /opt/ltp/testcases/bin/numa01.sh: line 475: [: =: unary operator expected
>> awk: cmd. line:1: fatal: cannot open file `/proc/4116/stat' for reading
>> (No such file or directory)
>> /opt/ltp/testcases/bin/numa01.sh: line 481: [: -ne: unary operator expected
>> /opt/ltp/testcases/bin/numa01.sh: line 488: kill: (4116) - No such process
>> numa04 4 TBROK : Kill on process 4116 fails
>>
>> Fix it by getting number of CPUs by grepping /proc/cpuinfo.
>> ---
>> testcases/kernel/numa/numa01.sh | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/testcases/kernel/numa/numa01.sh b/testcases/kernel/numa/numa01.sh
>> index 3ea7950..8d0808a 100644
>> --- a/testcases/kernel/numa/numa01.sh
>> +++ b/testcases/kernel/numa/numa01.sh
>> @@ -466,7 +466,7 @@ test04()
>> run_on_cpu=0
>> running_on_cpu=0
>>
>> - no_of_cpus=$(ls /sys/devices/system/cpu/ | wc -w)
>> + no_of_cpus=$(grep "^processor" /proc/cpuinfo | wc -l)
> We have commands tst_ncpus and tst_ncpus_max to get the number of cpu in the system.
That's fine. Please fix this issue the LTP way.
Thanks
Simon
>> # not sure whether cpu's can't be in odd number
>> run_on_cpu=$[$[$no_of_cpus+1]/2]
>> numactl --physcpubind=$run_on_cpu support_numa $PAUSE & #just waits for sigint
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next prev parent reply other threads:[~2012-11-23 5:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-23 5:42 [LTP] [PATCH] numa01.sh: fix error in getting number of CPUs Simon Xu
2012-11-23 5:46 ` Wanlong Gao
2012-11-23 5:51 ` Simon Xu [this message]
2012-11-23 7:04 ` Wanlong Gao
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