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[Profiler] Add `timer_create`-based CPU profiling on Linux

Open gleocadie opened this issue 1 year ago • 5 comments

Summary of changes

Add timer_create-based CPU profiling on linux.

Reason for change

On Linux, at each profiling tick, the sampling thread goes over the thread proc information (reading files) to 1) check if it's currently running on a CPU 2) retrieve the CPU time.

This is a significant overhead ( in addition to the stackwalking) and has a greater impact (relatively) in case of job application (applications that wait most of the time, and time to time, process requests/jobs)

With this (and the other improvements we've done in the past), this decrease the profiler overhead by at least 2x (2.46, the profiler had a 2.5s CPU overhead over a minute, with the various improvements, its goes to 1s CPU over a minute).

Implementation details

  • Revisit the ProfilerSignalManager to be able to get a manager by signal
  • Add mmap-based memory resource
  • Allow to change CPU profiler type ( manual or timer_create)
  • Allow to change the CPU sampling interval

Test coverage

  • Add unit tests for new classes and new configuration
  • Add integration tests for the new CPU profiler
  • Add benchmark tests
  • Add throughput test

Other details

gleocadie avatar Apr 19 '24 18:04 gleocadie

Datadog Report

Branch report: gleocadie/add-timer-create-based-cpu-profiling Commit report: 46805c1 Test service: dd-trace-dotnet

:white_check_mark: 0 Failed, 333689 Passed, 1801 Skipped, 43m 30.98s Wall Time :hourglass: 1 Performance Regression

:hourglass: Performance Regressions vs Default Branch (1)

  • Profiler_exceptions - scenarios 4.71s (+374.94ms, +9%) - Details

datadog-ddstaging[bot] avatar Apr 19 '24 19:04 datadog-ddstaging[bot]

Execution-Time Benchmarks Report :stopwatch:

Execution-time results for samples comparing the following branches/commits:

Execution-time benchmarks measure the whole time it takes to execute a program. And are intended to measure the one-off costs. Cases where the execution time results for the PR are worse than latest master results are shown in red. The following thresholds were used for comparing the execution times:

  • Welch test with statistical test for significance of 5%
  • Only results indicating a difference greater than 5% and 5 ms are considered.

Note that these results are based on a single point-in-time result for each branch. For full results, see the dashboard.

Graphs show the p99 interval based on the mean and StdDev of the test run, as well as the mean value of the run (shown as a diamond below the graph).

gantt
    title Execution time (ms) FakeDbCommand (.NET Framework 4.6.2) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (5476) - mean (71ms)  : 64, 77
     .   : milestone, 71,
    master - mean (74ms)  : 61, 87
     .   : milestone, 74,

    section CallTarget+Inlining+NGEN
    This PR (5476) - mean (1,018ms)  : 994, 1041
     .   : milestone, 1018,
    master - mean (1,018ms)  : 999, 1036
     .   : milestone, 1018,


gantt
    title Execution time (ms) FakeDbCommand (.NET Core 3.1) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (5476) - mean (108ms)  : 106, 111
     .   : milestone, 108,
    master - mean (109ms)  : 106, 111
     .   : milestone, 109,

    section CallTarget+Inlining+NGEN
    This PR (5476) - mean (708ms)  : 681, 734
     .   : milestone, 708,
    master - mean (715ms)  : 687, 744
     .   : milestone, 715,


gantt
    title Execution time (ms) FakeDbCommand (.NET 6) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (5476) - mean (92ms)  : 89, 95
     .   : milestone, 92,
    master - mean (92ms)  : 90, 95
     .   : milestone, 92,

    section CallTarget+Inlining+NGEN
    This PR (5476) - mean (663ms)  : 633, 692
     .   : milestone, 663,
    master - mean (661ms)  : 638, 684
     .   : milestone, 661,


gantt
    title Execution time (ms) HttpMessageHandler (.NET Framework 4.6.2) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (5476) - mean (190ms)  : 187, 193
     .   : milestone, 190,
    master - mean (191ms)  : 188, 194
     .   : milestone, 191,

    section CallTarget+Inlining+NGEN
    This PR (5476) - mean (1,108ms)  : 1085, 1130
     .   : milestone, 1108,
    master - mean (1,108ms)  : 1085, 1131
     .   : milestone, 1108,


gantt
    title Execution time (ms) HttpMessageHandler (.NET Core 3.1) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (5476) - mean (277ms)  : 272, 282
     .   : milestone, 277,
    master - mean (275ms)  : 270, 280
     .   : milestone, 275,

    section CallTarget+Inlining+NGEN
    This PR (5476) - mean (881ms)  : 855, 907
     .   : milestone, 881,
    master - mean (880ms)  : 859, 900
     .   : milestone, 880,


gantt
    title Execution time (ms) HttpMessageHandler (.NET 6) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (5476) - mean (265ms)  : 261, 269
     .   : milestone, 265,
    master - mean (265ms)  : 261, 269
     .   : milestone, 265,

    section CallTarget+Inlining+NGEN
    This PR (5476) - mean (865ms)  : 840, 891
     .   : milestone, 865,
    master - mean (859ms)  : 836, 882
     .   : milestone, 859,

andrewlock avatar Apr 19 '24 19:04 andrewlock

Benchmarks Report for tracer :snail:

Benchmarks for #5476 compared to master:

  • 1 benchmarks are slower, with geometric mean 1.127
  • All benchmarks have the same allocations

The following thresholds were used for comparing the benchmark speeds:

  • Mann–Whitney U test with statistical test for significance of 5%
  • Only results indicating a difference greater than 10% and 0.3 ns are considered.

Allocation changes below 0.5% are ignored.

Benchmark details

Benchmarks.Trace.ActivityBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master StartStopWithChild net6.0 7.64μs 43.8ns 350ns 0.0185 0.00742 0 5.43 KB
master StartStopWithChild netcoreapp3.1 9.77μs 52.7ns 279ns 0.0143 0.00478 0 5.61 KB
master StartStopWithChild net472 16.2μs 44ns 170ns 1.04 0.327 0.0956 6.07 KB
#5476 StartStopWithChild net6.0 7.74μs 43.9ns 320ns 0.0154 0.00384 0 5.43 KB
#5476 StartStopWithChild netcoreapp3.1 9.89μs 55.6ns 361ns 0.0194 0.00968 0 5.62 KB
#5476 StartStopWithChild net472 16.3μs 66.7ns 240ns 1.02 0.305 0.0882 6.08 KB
Benchmarks.Trace.AgentWriterBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master WriteAndFlushEnrichedTraces net6.0 461μs 318ns 1.23μs 0 0 0 2.7 KB
master WriteAndFlushEnrichedTraces netcoreapp3.1 615μs 154ns 556ns 0 0 0 2.7 KB
master WriteAndFlushEnrichedTraces net472 829μs 454ns 1.76μs 0.414 0 0 3.3 KB
#5476 WriteAndFlushEnrichedTraces net6.0 487μs 142ns 551ns 0 0 0 2.7 KB
#5476 WriteAndFlushEnrichedTraces netcoreapp3.1 643μs 303ns 1.14μs 0 0 0 2.7 KB
#5476 WriteAndFlushEnrichedTraces net472 821μs 65.1ns 226ns 0.411 0 0 3.3 KB
Benchmarks.Trace.AspNetCoreBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master SendRequest net6.0 170μs 140ns 543ns 0.171 0 0 18.45 KB
master SendRequest netcoreapp3.1 192μs 115ns 415ns 0.191 0 0 20.61 KB
master SendRequest net472 0.000655ns 0.000313ns 0.00117ns 0 0 0 0 b
#5476 SendRequest net6.0 170μs 162ns 606ns 0.255 0 0 18.45 KB
#5476 SendRequest netcoreapp3.1 192μs 232ns 867ns 0.191 0 0 20.61 KB
#5476 SendRequest net472 0.00128ns 0.000443ns 0.00172ns 0 0 0 0 b
Benchmarks.Trace.CIVisibilityProtocolWriterBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master WriteAndFlushEnrichedTraces net6.0 539μs 1.65μs 6.37μs 0.551 0 0 41.83 KB
master WriteAndFlushEnrichedTraces netcoreapp3.1 657μs 390ns 1.4μs 0.331 0 0 41.7 KB
master WriteAndFlushEnrichedTraces net472 845μs 3.46μs 12.9μs 8.28 2.48 0.414 53.22 KB
#5476 WriteAndFlushEnrichedTraces net6.0 548μs 779ns 3.02μs 0.546 0 0 41.66 KB
#5476 WriteAndFlushEnrichedTraces netcoreapp3.1 644μs 1.19μs 4.46μs 0.327 0 0 41.66 KB
#5476 WriteAndFlushEnrichedTraces net472 857μs 2.78μs 10.8μs 8.19 2.59 0.431 53.25 KB
Benchmarks.Trace.DbCommandBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master ExecuteNonQuery net6.0 1.19μs 0.687ns 2.66ns 0.0143 0 0 1.02 KB
master ExecuteNonQuery netcoreapp3.1 1.7μs 1.86ns 7.21ns 0.0137 0 0 1.02 KB
master ExecuteNonQuery net472 2.02μs 1.1ns 3.98ns 0.156 0 0 987 B
#5476 ExecuteNonQuery net6.0 1.26μs 0.612ns 2.37ns 0.0145 0 0 1.02 KB
#5476 ExecuteNonQuery netcoreapp3.1 1.66μs 0.653ns 2.53ns 0.0134 0 0 1.02 KB
#5476 ExecuteNonQuery net472 1.9μs 0.43ns 1.67ns 0.157 0 0 987 B
Benchmarks.Trace.ElasticsearchBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master CallElasticsearch net6.0 1.22μs 0.891ns 3.45ns 0.0134 0 0 976 B
master CallElasticsearch netcoreapp3.1 1.49μs 2.98ns 11.5ns 0.0129 0 0 976 B
master CallElasticsearch net472 2.53μs 1.05ns 4.07ns 0.157 0 0 995 B
master CallElasticsearchAsync net6.0 1.34μs 0.7ns 2.71ns 0.0128 0 0 952 B
master CallElasticsearchAsync netcoreapp3.1 1.63μs 0.83ns 3.21ns 0.0137 0 0 1.02 KB
master CallElasticsearchAsync net472 2.6μs 2.55ns 9.86ns 0.167 0 0 1.05 KB
#5476 CallElasticsearch net6.0 1.23μs 0.498ns 1.8ns 0.0137 0 0 976 B
#5476 CallElasticsearch netcoreapp3.1 1.57μs 0.708ns 2.65ns 0.0133 0 0 976 B
#5476 CallElasticsearch net472 2.56μs 0.613ns 2.37ns 0.157 0 0 995 B
#5476 CallElasticsearchAsync net6.0 1.33μs 0.59ns 2.29ns 0.0133 0 0 952 B
#5476 CallElasticsearchAsync netcoreapp3.1 1.65μs 0.742ns 2.77ns 0.0132 0 0 1.02 KB
#5476 CallElasticsearchAsync net472 2.53μs 1.84ns 6.9ns 0.166 0 0 1.05 KB
Benchmarks.Trace.GraphQLBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master ExecuteAsync net6.0 1.19μs 0.861ns 3.33ns 0.0136 0 0 952 B
master ExecuteAsync netcoreapp3.1 1.57μs 1.13ns 4.23ns 0.0125 0 0 952 B
master ExecuteAsync net472 1.77μs 0.75ns 2.81ns 0.145 0 0 915 B
#5476 ExecuteAsync net6.0 1.19μs 0.361ns 1.35ns 0.0131 0 0 952 B
#5476 ExecuteAsync netcoreapp3.1 1.58μs 1.12ns 4.35ns 0.0127 0 0 952 B
#5476 ExecuteAsync net472 1.74μs 1.11ns 4.29ns 0.145 0 0 915 B
Benchmarks.Trace.HttpClientBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master SendAsync net6.0 4.18μs 2.87ns 11.1ns 0.0295 0 0 2.22 KB
master SendAsync netcoreapp3.1 5.12μs 2.8ns 10.8ns 0.0382 0 0 2.76 KB
master SendAsync net472 7.5μs 2.78ns 10.8ns 0.499 0 0 3.15 KB
#5476 SendAsync net6.0 4.23μs 1.62ns 6.04ns 0.0296 0 0 2.22 KB
#5476 SendAsync netcoreapp3.1 5.06μs 2.46ns 9.2ns 0.0379 0 0 2.76 KB
#5476 SendAsync net472 7.67μs 3.75ns 14ns 0.496 0 0 3.15 KB
Benchmarks.Trace.ILoggerBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master EnrichedLog net6.0 1.56μs 0.561ns 2.1ns 0.0233 0 0 1.64 KB
master EnrichedLog netcoreapp3.1 2.06μs 0.433ns 1.56ns 0.0226 0 0 1.64 KB
master EnrichedLog net472 2.49μs 0.766ns 2.76ns 0.249 0 0 1.57 KB
#5476 EnrichedLog net6.0 1.48μs 0.43ns 1.67ns 0.023 0 0 1.64 KB
#5476 EnrichedLog netcoreapp3.1 2.21μs 1.08ns 4.03ns 0.0221 0 0 1.64 KB
#5476 EnrichedLog net472 2.5μs 1.64ns 6.34ns 0.249 0 0 1.57 KB
Benchmarks.Trace.Log4netBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master EnrichedLog net6.0 114μs 158ns 614ns 0.0563 0 0 4.28 KB
master EnrichedLog netcoreapp3.1 119μs 176ns 682ns 0 0 0 4.28 KB
master EnrichedLog net472 146μs 55.1ns 213ns 0.658 0.219 0 4.46 KB
#5476 EnrichedLog net6.0 116μs 98ns 379ns 0.0566 0 0 4.28 KB
#5476 EnrichedLog netcoreapp3.1 118μs 135ns 524ns 0.0589 0 0 4.28 KB
#5476 EnrichedLog net472 147μs 52.1ns 202ns 0.659 0.22 0 4.46 KB
Benchmarks.Trace.NLogBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master EnrichedLog net6.0 3.06μs 1.54ns 5.75ns 0.0307 0 0 2.2 KB
master EnrichedLog netcoreapp3.1 4.4μs 1.28ns 4.81ns 0.0286 0 0 2.2 KB
master EnrichedLog net472 5μs 1.54ns 5.76ns 0.32 0 0 2.02 KB
#5476 EnrichedLog net6.0 3.09μs 0.894ns 3.46ns 0.0293 0 0 2.2 KB
#5476 EnrichedLog netcoreapp3.1 4.21μs 1.51ns 5.87ns 0.0294 0 0 2.2 KB
#5476 EnrichedLog net472 4.85μs 1.77ns 6.84ns 0.32 0 0 2.02 KB
Benchmarks.Trace.RedisBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master SendReceive net6.0 1.38μs 2.34ns 8.77ns 0.0161 0 0 1.14 KB
master SendReceive netcoreapp3.1 1.72μs 2.91ns 11.3ns 0.0146 0 0 1.14 KB
master SendReceive net472 2.08μs 0.675ns 2.53ns 0.183 0 0 1.16 KB
#5476 SendReceive net6.0 1.29μs 0.751ns 2.81ns 0.0161 0 0 1.14 KB
#5476 SendReceive netcoreapp3.1 1.73μs 0.818ns 3.17ns 0.0156 0 0 1.14 KB
#5476 SendReceive net472 2.11μs 1.94ns 7.51ns 0.183 0 0 1.16 KB
Benchmarks.Trace.SerilogBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master EnrichedLog net6.0 2.6μs 1.51ns 5.64ns 0.0223 0 0 1.6 KB
master EnrichedLog netcoreapp3.1 3.84μs 0.73ns 2.73ns 0.0211 0 0 1.65 KB
master EnrichedLog net472 4.29μs 4.48ns 16.2ns 0.322 0 0 2.04 KB
#5476 EnrichedLog net6.0 2.61μs 0.919ns 3.44ns 0.0234 0 0 1.6 KB
#5476 EnrichedLog netcoreapp3.1 3.79μs 1.55ns 5.81ns 0.0208 0 0 1.65 KB
#5476 EnrichedLog net472 4.3μs 1.16ns 4.48ns 0.322 0 0 2.04 KB
Benchmarks.Trace.SpanBenchmark - Slower :warning: Same allocations :heavy_check_mark:

Slower :warning: in #5476

Benchmark diff/base Base Median (ns) Diff Median (ns) Modality
Benchmarks.Trace.SpanBenchmark.StartFinishSpan‑net472 1.127 587.93 662.54

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master StartFinishSpan net6.0 456ns 0.0971ns 0.363ns 0.00813 0 0 576 B
master StartFinishSpan netcoreapp3.1 554ns 0.193ns 0.748ns 0.00774 0 0 576 B
master StartFinishSpan net472 587ns 0.722ns 2.8ns 0.0917 0 0 578 B
master StartFinishScope net6.0 461ns 0.17ns 0.66ns 0.0098 0 0 696 B
master StartFinishScope netcoreapp3.1 676ns 0.367ns 1.42ns 0.00964 0 0 696 B
master StartFinishScope net472 847ns 0.382ns 1.43ns 0.104 0 0 658 B
#5476 StartFinishSpan net6.0 426ns 0.15ns 0.582ns 0.008 0 0 576 B
#5476 StartFinishSpan netcoreapp3.1 584ns 0.238ns 0.922ns 0.00792 0 0 576 B
#5476 StartFinishSpan net472 662ns 0.507ns 1.96ns 0.0918 0 0 578 B
#5476 StartFinishScope net6.0 468ns 0.0669ns 0.241ns 0.00966 0 0 696 B
#5476 StartFinishScope netcoreapp3.1 666ns 0.291ns 1.09ns 0.00939 0 0 696 B
#5476 StartFinishScope net472 863ns 0.694ns 2.69ns 0.105 0 0 658 B
Benchmarks.Trace.TraceAnnotationsBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

Raw results

Branch Method Toolchain Mean StdError StdDev Gen 0 Gen 1 Gen 2 Allocated
master RunOnMethodBegin net6.0 668ns 0.559ns 2.17ns 0.00969 0 0 696 B
master RunOnMethodBegin netcoreapp3.1 919ns 0.313ns 1.21ns 0.00958 0 0 696 B
master RunOnMethodBegin net472 1.07μs 0.353ns 1.37ns 0.104 0 0 658 B
#5476 RunOnMethodBegin net6.0 730ns 0.621ns 2.4ns 0.00988 0 0 696 B
#5476 RunOnMethodBegin netcoreapp3.1 875ns 0.413ns 1.6ns 0.00926 0 0 696 B
#5476 RunOnMethodBegin net472 1.13μs 0.491ns 1.9ns 0.104 0 0 658 B

andrewlock avatar Apr 19 '24 21:04 andrewlock

Throughput/Crank Report:zap:

Throughput results for AspNetCoreSimpleController comparing the following branches/commits:

Cases where throughput results for the PR are worse than latest master (5% drop or greater), results are shown in red.

Note that these results are based on a single point-in-time result for each branch. For full results, see one of the many, many dashboards!

gantt
    title Throughput Linux x64 (Total requests) 
    dateFormat  X
    axisFormat %s
    section Baseline
    This PR (5476) (11.939M)   : 0, 11938686
    master (11.881M)   : 0, 11880597
    benchmarks/2.9.0 (11.915M)   : 0, 11914657

    section Automatic
    This PR (5476) (8.063M)   : 0, 8062731
    master (8.047M)   : 0, 8046727
    benchmarks/2.9.0 (8.513M)   : 0, 8513066

    section Trace stats
    master (8.464M)   : 0, 8463773

    section Manual
    This PR (5476) (10.252M)   : 0, 10252228
    master (10.247M)   : 0, 10246957

    section Manual + Automatic
    This PR (5476) (7.512M)   : 0, 7511836
    master (7.578M)   : 0, 7577515

    section Version Conflict
    master (6.707M)   : 0, 6707065


gantt
    title Throughput Linux arm64 (Total requests) 
    dateFormat  X
    axisFormat %s
    section Baseline
    This PR (5476) (9.546M)   : 0, 9546024
    benchmarks/2.9.0 (9.711M)   : 0, 9711350

    section Automatic
    This PR (5476) (6.550M)   : 0, 6550413

    section Manual
    This PR (5476) (8.246M)   : 0, 8245631

    section Manual + Automatic
    This PR (5476) (6.217M)   : 0, 6217291


gantt
    title Throughput Windows x64 (Total requests) 
    dateFormat  X
    axisFormat %s
    section Baseline
    This PR (5476) (10.032M)   : 0, 10031840
    master (10.099M)   : 0, 10099485

    section Automatic
    This PR (5476) (7.157M)   : 0, 7156646
    master (7.144M)   : 0, 7143660

    section Trace stats
    master (7.418M)   : 0, 7418021

    section Manual
    This PR (5476) (8.794M)   : 0, 8794122
    master (8.900M)   : 0, 8899902

    section Manual + Automatic
    This PR (5476) (6.921M)   : 0, 6920921
    master (6.862M)   : 0, 6861859

    section Version Conflict
    master (6.305M)   : 0, 6305249

andrewlock avatar Apr 22 '24 12:04 andrewlock

Datadog Report

Branch report: gleocadie/add-timer-create-based-cpu-profiling Commit report: 66f6868 Test service: dd-trace-dotnet

:white_check_mark: 0 Failed, 344440 Passed, 2033 Skipped, 16h 7m 33.32s Total Time :snowflake: 1 New Flaky

New Flaky Tests (1)

  • NoExceptions - Datadog.Trace.ClrProfiler.IntegrationTests.SmokeTests.RuntimeMetricsShutdownSmokeTest - Last Failure

    Expand for error 
    xpected no errors in smoke test: open(/proc/2390/mem) FAILED 2 (No such file or directory)

xpected: True
ctual:   False

datadog-ddstaging[bot] avatar Jun 17 '24 14:06 datadog-ddstaging[bot]