bitesize: switch to issue tracepoint (iovisor#2283)

bitesize: switch to trace_block_rq_issue tracepoint
nanshuaibo · Mar 21, 2019 · 6b05e61 · 6b05e61
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commit 6b05e61
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diff --git a/man/man8/bitesize.8 b/man/man8/bitesize.8
@@ -6,7 +6,7 @@ bitesize \- Summarize block device I/O size as a histogram \- Linux eBPF/bcc.
 .SH DESCRIPTION
 Show I/O distribution for requested block sizes, by process name.
 
-This works by tracing block:block_rq_insert and prints a historgram of I/O size.
+This works by tracing block:block_rq_issue and prints a historgram of I/O size.
 
 Since this uses BPF, only the root user can use this tool.
 .SH REQUIREMENTS

diff --git a/tools/bitesize.py b/tools/bitesize.py
@@ -27,7 +27,7 @@
 
 BPF_HISTOGRAM(dist, struct proc_key_t);
 
-TRACEPOINT_PROBE(block, block_rq_insert)
+TRACEPOINT_PROBE(block, block_rq_issue)
 {
  struct proc_key_t key = {.slot = bpf_log2l(args->bytes / 1024)};
  bpf_probe_read(&key.name, sizeof(key.name), args->comm);