pkg/agent: Use eBPF map batch operations #181
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kakkoyun
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| @@ -53,6 +54,16 @@ const ( | |||
| doubleStackDepth = 254 | |||
| ) | |||
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| // stackCountKey mirrors the struct in parca-agent.bpf.c. | |||
| // | |||
| // TODO(derekparker) Perhaps in order to keep these in sync we should write a Go generator to | |||
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Already the opened the issue for it #207
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| stackBytes, err := stackTraces.GetValue(unsafe.Pointer(&userStackID)) | ||
| if err != nil { | ||
| //profile.MissingStacks++ | ||
| // TODO(derekparker): Should we log or increment missing stack trace count? |
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👍 Let's add a metric for it, not necessarily in this PR though. #208
| // memsetCountKeys will reset the given slice to the given value. | ||
| // This function makes use of the highly optimized copy builtin function | ||
| // and is able to fill the entire slice in O(log n) time. | ||
| func memsetCountKeys(in []stackCountKey, v stackCountKey) { |
This patch adds support for using eBPF batch operations on maps which should dramatically improve the performance of the parca-agent by enabling it to batch lookup and delete keys/values in maps in a single operation. This replaces the use of iterators in favor of iteration in batches. Fixes parca-dev#74
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Done! |
kakkoyun
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This patch adds support for using eBPF batch operations on maps which
should dramatically improve the performance of the parca-agent by
enabling it to batch lookup and delete keys/values in maps in a single
operation.
This replaces the use of iterators in favor of iteration in batches.
Fixes #74