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Re: maxactive(NNNN) usage
- From: fche at redhat dot com (Frank Ch. Eigler)
- To: Jey Jay <rjayavrp2 at gmail dot com>
- Cc: systemtap at sourceware dot org
- Date: Mon, 06 Jan 2014 11:46:14 -0500
- Subject: Re: maxactive(NNNN) usage
- Authentication-results: sourceware.org; auth=none
- References: <CAAKGpwT0Hk_7XNY8t49f_qzrXGzTcP51kD4QN--=qKj4jTaGrA at mail dot gmail dot com>
Jey Jay <rjayavrp2@gmail.com> writes:
> [...]
> Below is a sample script(maxactive included).
> [...]
> ----- probe hit report:
> kernel.function("vfs_read@fs/read_write.c:353").call,
> (maxactive05.stp:6:1), hits: 18, cycles: 0min/0avg/0max, from:
> kernel.function("vfs_read").call, index: 0
> But there is no response for .return. i.e I'm expecting
> printf("Testing.... Jay") statement to be executed. Any guidance
> will help me lot.. Jeyaram
This is working here on various Fedora/RHEL platforms and on various
systemtap versions. Perhaps the data generated by stap-report might
help point a finger at a kernel or systemtap version or configuration
problem.
- FChE