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yunwei37
2024-09-02 06:20:32 +00:00
parent 38e1ba9ee4
commit 1bee8eed67
9 changed files with 101 additions and 214 deletions
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49
39-nginx/trace.bt Normal file
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#!/usr/sbin/bpftrace
// Monitor the start of HTTP request processing
uprobe:/usr/sbin/nginx:ngx_http_process_request
{
printf("HTTP request processing started (tid: %d)\n", tid);
@start[tid] = nsecs;
}
// Monitor when an HTTP request is finalized
uretprobe:/usr/sbin/nginx:ngx_http_finalize_request
/@start[tid]/
{
$elapsed = nsecs - @start[tid];
printf("HTTP request processed in %d ns (tid: %d)\n", $elapsed, tid);
delete(@start[tid]);
}
// Monitor the start of sending a request to an upstream server
uprobe:/usr/sbin/nginx:ngx_http_upstream_send_request
{
printf("Upstream request sending started (tid: %d)\n", tid);
@upstream_start[tid] = nsecs;
}
// Monitor when the upstream request is sent
uretprobe:/usr/sbin/nginx:ngx_http_upstream_send_request
/@upstream_start[tid]/
{
$elapsed = nsecs - @upstream_start[tid];
printf("Upstream request sent in %d ns (tid: %d)\n", $elapsed, tid);
delete(@upstream_start[tid]);
}
// Monitor the start of event processing
uprobe:/usr/sbin/nginx:ngx_event_process_posted
{
printf("Event processing started (tid: %d)\n", tid);
@event_start[tid] = nsecs;
}
// Monitor when event processing is completed
uretprobe:/usr/sbin/nginx:ngx_event_process_posted
/@event_start[tid]/
{
$elapsed = nsecs - @event_start[tid];
printf("Event processed in %d ns (tid: %d)\n", $elapsed, tid);
delete(@event_start[tid]);
}