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-rw-r--r--src/trace_profile/strace.md6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/trace_profile/strace.md b/src/trace_profile/strace.md
index c610df3..ce77d17 100644
--- a/src/trace_profile/strace.md
+++ b/src/trace_profile/strace.md
@@ -9,6 +9,10 @@ strace [opts] [prg]
-o <file> ... log output into <file>
-c .......... dump syscall statitics at the end
-k .......... dump stack trace for each syscall
+ -P <path> ... only trace syscall accesing path
+ -y .......... print paths for FDs
+ -tt ......... print absolute timestamp (with us precision)
+ -r .......... print relative timestamp
```
```markdown
@@ -29,5 +33,5 @@ strace -f -e trace=open,socket -p <pid>
Trace signals delivered to a running process:
```markdown
-strace -f -e signal -p <pid>
+strace -e signal -e 'trace=!all' -p <pid>
```