[compiler-rt] r272175 - [esan|wset] Reduce flakiness in samples test

[Chandler Carruth via llvm-commits]

Any update here? the build bots are flaking because of this test.

On Thu, Jun 23, 2016 at 11:22 PM David Majnemer via llvm-commits <
llvm-commits at lists.llvm.org> wrote:

> Still seems flaky:
>
> /home/llvmbb/llvm-build-dir/llvm-clang-lld-x86_64-debian-fast/llvm.src/projects/compiler-rt/test/esan/TestCases/workingset-samples.cpp:25:17:
> error: expected string not found in input
>  // CHECK-NEXT: =={{[0-9]+}}==# 0: {{[ 0-9]+}} {{KB|Bytes}} ({{[ 0-9]+}}
> cache lines)
>                 ^
> <stdin>:4:1: note: scanning from here
> ==21268== Samples array #1 at period 80 ms
> ^
> <stdin>:11:36: note: possible intended match here
> ==21268== EfficiencySanitizer: the total working set size: 32 MB (524289
> cache lines)
>
> Looks like the regex pattern should be expanded further?
>
> On Wed, Jun 8, 2016 at 10:35 AM, Derek Bruening via llvm-commits <
> llvm-commits at lists.llvm.org> wrote:
>
>> Author: bruening
>> Date: Wed Jun  8 12:35:52 2016
>> New Revision: 272175
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=272175&view=rev
>> Log:
>> [esan|wset] Reduce flakiness in samples test
>>
>> Generalizes the workingset-samples test to pass when a sample has a
>> size of 0, which can happen on a loaded machine.
>>
>> Modified:
>>     compiler-rt/trunk/test/esan/TestCases/workingset-samples.cpp
>>
>> Modified: compiler-rt/trunk/test/esan/TestCases/workingset-samples.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/esan/TestCases/workingset-samples.cpp?rev=272175&r1=272174&r2=272175&view=diff
>>
>> ==============================================================================
>> --- compiler-rt/trunk/test/esan/TestCases/workingset-samples.cpp
>> (original)
>> +++ compiler-rt/trunk/test/esan/TestCases/workingset-samples.cpp Wed Jun
>> 8 12:35:52 2016
>> @@ -22,12 +22,12 @@ int main(int argc, char **argv) {
>>    // We only check for a few samples here to reduce the chance of
>> flakiness.
>>    // CHECK:      =={{[0-9]+}}== Total number of samples: {{[0-9]+}}
>>    // CHECK-NEXT: =={{[0-9]+}}== Samples array #0 at period 20 ms
>> -  // CHECK-NEXT: =={{[0-9]+}}==#   0: {{[ 0-9]+}} KB ({{[ 0-9]+}} cache
>> lines)
>> -  // CHECK-NEXT: =={{[0-9]+}}==#   1: {{[ 0-9]+}} KB ({{[ 0-9]+}} cache
>> lines)
>> -  // CHECK-NEXT: =={{[0-9]+}}==#   2: {{[ 0-9]+}} KB ({{[ 0-9]+}} cache
>> lines)
>> -  // CHECK-NEXT: =={{[0-9]+}}==#   3: {{[ 0-9]+}} KB ({{[ 0-9]+}} cache
>> lines)
>> +  // CHECK-NEXT: =={{[0-9]+}}==#   0: {{[ 0-9]+}} {{KB|Bytes}} ({{[
>> 0-9]+}} cache lines)
>> +  // CHECK-NEXT: =={{[0-9]+}}==#   1: {{[ 0-9]+}} {{KB|Bytes}} ({{[
>> 0-9]+}} cache lines)
>> +  // CHECK-NEXT: =={{[0-9]+}}==#   2: {{[ 0-9]+}} {{KB|Bytes}} ({{[
>> 0-9]+}} cache lines)
>> +  // CHECK-NEXT: =={{[0-9]+}}==#   3: {{[ 0-9]+}} {{KB|Bytes}} ({{[
>> 0-9]+}} cache lines)
>>    // CHECK:      =={{[0-9]+}}== Samples array #1 at period 80 ms
>> -  // CHECK-NEXT: =={{[0-9]+}}==#   0: {{[ 0-9]+}} KB ({{[ 0-9]+}} cache
>> lines)
>> +  // CHECK-NEXT: =={{[0-9]+}}==#   0: {{[ 0-9]+}} {{KB|Bytes}} ({{[
>> 0-9]+}} cache lines)
>>    // CHECK:      =={{[0-9]+}}== Samples array #2 at period 320 ms
>>    // CHECK:      =={{[0-9]+}}== Samples array #3 at period 1280 ms
>>    // CHECK:      =={{[0-9]+}}== Samples array #4 at period 5120 ms
>>
>>
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>
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