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

[David Majnemer via llvm-commits]

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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