Dtrace fbt provider on windows not working

Asked Sep 23 '20 at 08:33

Active Sep 23 '20 at 09:34

Viewed 236 times

I'm running Dtrace on windows and when trying to execute this command-line script

dtrace -n "fbt:nt:*Timer*:entry { @k[probefunc] = count(); } tick-5s { trunc(@k, 10);printa(@k); exit(0); }"

as given in official microsoft documentation https://learn.microsoft.com/en-us/windows-hardware/drivers/devtest/dtrace#installing-dtrace-under-windows, the output dumped by dtrace is :-

dtrace: description 'fbt:nt:*Timer*:entry ' matched 391 probes

CPU     ID                    FUNCTION:NAME

  0  45932                         :tick-5s

Why is the output empty ?

I have followed all the steps given in documentation in the VM

edited Sep 23 '20 at 09:34

asked Sep 23 '20 at 08:33

Yash

1

Are you sure the probes that `fbt:nt:*Timer*:entry` matches are actually being hit? You can test this with `dtrace -n 'fbt:nt:*Timer*:entry'`. – ahl Sep 23 '20 at 21:37
Yes probes are not getting hit , any reason why is that so ? – Yash Sep 24 '20 at 01:54
Dtrace fbt provider not working for VM – Yash Oct 01 '20 at 12:38

Dtrace fbt provider on windows not working

0 Answers0