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feat: implement agent process management #9461

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Merged
merged 21 commits into from
Sep 15, 2023
Merged

feat: implement agent process management #9461

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4ed4069
feat: implement agent process management
sreya Aug 30, 2023
7e59db6
improve process detection
sreya Aug 31, 2023
8c65216
add agentproc tests
sreya Aug 31, 2023
760cbb3
some minor agent tests
sreya Sep 1, 2023
f4b864e
add a proper test for proc management
sreya Sep 1, 2023
cbcb854
custom nice
sreya Sep 1, 2023
8230247
refactor into build files
sreya Sep 8, 2023
3e1defd
tick tock
sreya Sep 8, 2023
2fe9c70
make fmt
sreya Sep 8, 2023
ef41e9a
pr comments
sreya Sep 12, 2023
05baba0
lint
sreya Sep 12, 2023
478d57c
whoops
sreya Sep 12, 2023
0ced5ce
skip non-linux
sreya Sep 13, 2023
8aaa6d5
skip non-linux
sreya Sep 13, 2023
cea4851
prevent race
sreya Sep 13, 2023
5020eb4
only prioritize ourselves
sreya Sep 14, 2023
11ab047
Revert "only prioritize ourselves"
sreya Sep 14, 2023
46ef05a
only prioritize coder agent
sreya Sep 14, 2023
d132480
remove oom_score_adj
sreya Sep 14, 2023
04ee5cb
defer first
sreya Sep 15, 2023
ffbeab9
avoid resetting niceness for already niced procs
sreya Sep 15, 2023
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defer first
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@sreya
sreya committed Sep 15, 2023
commit 04ee5cb5b27e4b3cf2e904931fccac8e248f513d
18 changes: 9 additions & 9 deletions agent/agent.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1282,15 +1282,6 @@ func (a *agent) startReportingConnectionStats(ctx context.Context) {
var prioritizedProcs = []string{"coder agent"}

func (a *agent) manageProcessPriorityLoop(ctx context.Context) {
if val := a.envVars[EnvProcPrioMgmt]; val == "" || runtime.GOOS != "linux" {
a.logger.Debug(ctx, "process priority not enabled, agent will not manage process niceness/oom_score_adj ",
slog.F("env_var", EnvProcPrioMgmt),
slog.F("value", val),
slog.F("goos", runtime.GOOS),
)
return
}

defer func() {
if r := recover(); r != nil {
a.logger.Critical(ctx, "recovered from panic",
Expand All @@ -1300,6 +1291,15 @@ func (a *agent) manageProcessPriorityLoop(ctx context.Context) {
}
}()

if val := a.envVars[EnvProcPrioMgmt]; val == "" || runtime.GOOS != "linux" {
a.logger.Debug(ctx, "process priority not enabled, agent will not manage process niceness/oom_score_adj ",
slog.F("env_var", EnvProcPrioMgmt),
slog.F("value", val),
slog.F("goos", runtime.GOOS),
)
return
}

if a.processManagementTick == nil {
ticker := time.NewTicker(time.Second)
defer ticker.Stop()
Expand Down