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Re: kprobes performance on i386 vs x86_64
- From: Satoshi Oshima <soshima at redhat dot com>
- To: Martin Hunt <hunt at redhat dot com>
- Cc: systemtap at sources dot redhat dot com
- Date: Tue, 30 Jan 2007 18:10:11 -0500
- Subject: Re: kprobes performance on i386 vs x86_64
- References: <1169495735.3338.4.camel@dragon>
Martin Hunt wrote:
> 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?
True. Kprobes for i386 has booster but for x86_64 doesn't have booster.
Sorry that's my fault.
Today, I rebase k*probe-booster x86_64 patch set to latest mm.
and now under testing.
It will be posted as soon as it passes the tests.
Satoshi