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Re: Measure the Accept Queueing Time
- From: "Frank Ch. Eigler" <fche at redhat dot com>
- To: Vara Prasad <prasadav at us dot ibm dot com>
- Cc: systemtap at sources dot redhat dot com
- Date: Tue, 7 Feb 2006 16:26:30 -0500
- Subject: Re: Measure the Accept Queueing Time
- References: <43E28A07.1040604@tamu.edu> <y0mek2kdlqk.fsf@toenail.toronto.redhat.com> <43E90B4F.7040407@us.ibm.com>
Hi -
varap wrote:
> [...] Looks like you had certain difficulties in coming up with the
> script due to the current infrastructure of SystemTAP. [...]
I thought those parts were self-explanatory. All those
kernel.statement(0xaddr) probes should not have been necessary, as the
dwarf system should be able to resolve them symbolically as those
other (commented-out) probe points in the script.
I also marked a point where systemtap should become able to extract a
particular target-side value, which was defined by two partially
aliased structures. A new feature (pointer type downcasting in
$-expressions) is needed.
- FChE