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user: add command-line options to set perf event buffer size #247

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merged 3 commits into from
Jan 5, 2025
Merged

user: add command-line options to set perf event buffer size #247

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bd44fd0
user: add command-line options to set perf event buffer size
mannkafai Jan 5, 2025
8fb03ed
user: add command-line options to set pageNum of perf event buffer
mannkafai Jan 5, 2025
f4665a2
mark `*-perf-event-map-page-num` options hidden
mannkafai Jan 5, 2025
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8 changes: 4 additions & 4 deletions agent/agent.go
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Original file line number Diff line number Diff line change
Expand Up @@ -112,19 +112,19 @@ func SetupAgent(options ac.AgentOptions) {
_bf.Links = bf.Links
_bf.Objs = bf.Objs

err = bpf.PullSyscallDataEvents(ctx, pm.GetSyscallEventsChannels(), 2048, options.CustomSyscallEventHook)
err = bpf.PullSyscallDataEvents(ctx, pm.GetSyscallEventsChannels(), options.SyscallPerfEventMapPageNum, options.CustomSyscallEventHook)
if err != nil {
return
}
err = bpf.PullSslDataEvents(ctx, pm.GetSslEventsChannels(), 512, options.CustomSslEventHook)
err = bpf.PullSslDataEvents(ctx, pm.GetSslEventsChannels(), options.SslPerfEventMapPageNum, options.CustomSslEventHook)
if err != nil {
return
}
err = bpf.PullConnDataEvents(ctx, pm.GetConnEventsChannels(), 4, options.CustomConnEventHook)
err = bpf.PullConnDataEvents(ctx, pm.GetConnEventsChannels(), options.ConnPerfEventMapPageNum, options.CustomConnEventHook)
if err != nil {
return
}
err = bpf.PullKernEvents(ctx, pm.GetKernEventsChannels(), 32, options.CustomKernEventHook)
err = bpf.PullKernEvents(ctx, pm.GetKernEventsChannels(), options.KernPerfEventMapPageNum, options.CustomKernEventHook)
if err != nil {
return
}
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5 changes: 5 additions & 0 deletions agent/common/options.go
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Expand Up @@ -64,6 +64,11 @@ type AgentOptions struct {
Ctx context.Context
Kv *compatible.KernelVersion
LoadPorgressChannel chan string

SyscallPerfEventMapPageNum int
SslPerfEventMapPageNum int
ConnPerfEventMapPageNum int
KernPerfEventMapPageNum int
}

func (o AgentOptions) FilterByContainer() bool {
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10 changes: 10 additions & 0 deletions cmd/root.go
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Expand Up @@ -90,6 +90,12 @@ func init() {
fmt.Sprintf("(default: uses in order the first successful one of [%s])",
strings.Join(getDefaultCriRuntimeEndpoint(), ", ")))

// pageNum of eBPF map
rootCmd.PersistentFlags().IntVar(&options.SyscallPerfEventMapPageNum, "syscall-perf-event-map-page-num", 2048, "pageNum of eBPF map size for syscall data events buffer")
rootCmd.PersistentFlags().IntVar(&options.SslPerfEventMapPageNum, "ssl-perf-event-map-page-num", 512, "pageNum of eBPF map size for ssl data events buffer")
rootCmd.PersistentFlags().IntVar(&options.ConnPerfEventMapPageNum, "conn-perf-event-map-page-num", 4, "pageNum of eBPF map size for conn data events buffer")
rootCmd.PersistentFlags().IntVar(&options.KernPerfEventMapPageNum, "kern-perf-event-map-page-num", 32, "pageNum of eBPF map size for kern events buffer")

// internal
rootCmd.PersistentFlags().BoolVar(&options.PerformanceMode, "performance-mode", true, "--performance false")
rootCmd.PersistentFlags().IntVar(&KernEvtPerfEventBufferSize, "kern-perf-event-buffer-size", 1*1024*1024, "--kern-perf-event-buffer-size 1024")
Expand All @@ -106,6 +112,10 @@ func init() {
rootCmd.PersistentFlags().MarkHidden("data-perf-event-buffer-size")
rootCmd.PersistentFlags().MarkHidden("performance-mode")
rootCmd.PersistentFlags().MarkHidden("conntrack-close-wait-time-mills")
rootCmd.PersistentFlags().MarkHidden("syscall-perf-event-map-page-num")
rootCmd.PersistentFlags().MarkHidden("ssl-perf-event-map-page-num")
rootCmd.PersistentFlags().MarkHidden("conn-perf-event-map-page-num")
rootCmd.PersistentFlags().MarkHidden("kern-perf-event-map-page-num")

rootCmd.Flags().SortFlags = false
rootCmd.PersistentFlags().SortFlags = false
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