DTrace: coming attractions
I haven’t been as prolific a blog writer as I like for the last few days because I’ve been working morning, noon, and night on some pretty cool new stuff for DTrace. Here’s a teaser, I promise I’ll give you more later when I have it all working:
bash-2.05b# dtrace -l -n plockstat100694::: ID PROVIDER MODULE FUNCTION NAME 37394 plockstat694 libc.so.1 mutex_lock_queue mutex-block 37395 plockstat694 libc.so.1 rwlock_lock rw-block 37396 plockstat694 libc.so.1 __mutex_trylock mutex-acquire 37397 plockstat694 libc.so.1 __mutex_unlock mutex-release 37398 plockstat694 libc.so.1 mutex_unlock_internal mutex-release 37399 plockstat694 libc.so.1 mutex_trylock_adaptive mutex-spin 37400 plockstat694 libc.so.1 rwlock_lock rw-block 37401 plockstat694 libc.so.1 cond_wait_queue mutex-acquire 37402 plockstat694 libc.so.1 _pthread_spin_trylock mutex-acquire 37403 plockstat694 libc.so.1 lmutex_lock mutex-acquire 37404 plockstat694 libc.so.1 __mutex_trylock mutex-acquire 37405 plockstat694 libc.so.1 mutex_lock_impl mutex-acquire 37406 plockstat694 libc.so.1 fast_process_lock mutex-acquire ...
In case you need a hint, note that plockstat rhymes with lockstat(1m)…
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on July 25, 2004 at 6:39 pm
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I believe that my comment on this one on the internal Dtrace alias was …
Those of us that get stuck with user-space performance calls with a (decided lack of data) are going to find this one useful… Well, it will be useful when we can get these folks onto Solaris 10, many are still running 2.6 (and some even on 2.5.1!).
alan.
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on August 30, 2004 at 9:26 pm
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[Trackback] Just noticed two rather large dtrace putbacks into build 67 today.
Bryan has just completed a whole lot of small fixes that include the gas/as problem with the fbt provider that was discussed on the bigadmin forum and some interaction issues wit…