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

[Justin Bogner via llvm-commits]

Derek Bruening via llvm-commits <llvm-commits at lists.llvm.org> writes:
> Please provide a pointer to which bots.  It is not easy to find which ones
> are being referred to at http://lab.llvm.org:8011/waterfall in order to see
> the precise test output.

The output is as David wrote, but here's a run that failed like this
today:

  http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-debian-fast/builds/39465

This seems to be happening fairly frequently right now.

> On Fri, Jul 1, 2016 at 1:51 PM, Chandler Carruth <chandlerc at gmail.com>
> wrote:
>
>> 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
>>>>
>>>>
>>>> _______________________________________________
>>>> llvm-commits mailing list
>>>> llvm-commits at lists.llvm.org
>>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>>>>
>>>
>>> _______________________________________________
>>> llvm-commits mailing list
>>> llvm-commits at lists.llvm.org
>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>>>
>>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits