This is the mail archive of the
systemtap@sourceware.org
mailing list for the systemtap project.
RE: kprobes performance on i386 vs x86_64
- From: "Keshavamurthy, Anil S" <anil dot s dot keshavamurthy at intel dot com>
- To: "Martin Hunt" <hunt at redhat dot com>, <systemtap at sources dot redhat dot com>
- Date: Mon, 22 Jan 2007 14:06:38 -0800
- Subject: RE: kprobes performance on i386 vs x86_64
Possible. Can you rerun the same tests again with some dummy
post-kprobe-handler as djprobes will not come into effect if you have
post-kprobe-handler.
Thanks,
-Anil Keshavamurthy
Open Source Technology Center/SSG
Intel Corp.
(w) 503-712-4476
email: anil.s.keshavamurthy@intel.com
-----Original Message-----
From: systemtap-owner@sourceware.org
[mailto:systemtap-owner@sourceware.org] On Behalf Of Martin Hunt
Sent: Monday, January 22, 2007 11:56 AM
To: systemtap@sources.redhat.com
Subject: kprobes performance on i386 vs x86_64
Is there a reason why i386 kprobes are 2-3 times faster than x86_64 on
2.6.19? This is on the same hardware. Is djprobes only working on i386
or something?
Martin