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Re: turning on -fno-inline-functions-called-once
- From: Dave Jones <davej at redhat dot com>
- To: Steve Dickson <SteveD at redhat dot com>
- Cc: Fedora Kernel List <fedora-kernel-list at redhat dot com>, SystemTAP <systemtap at sources dot redhat dot com>
- Date: Mon, 6 Oct 2008 23:29:17 -0400
- Subject: Re: turning on -fno-inline-functions-called-once
- References: <48EA5F44.1030606@RedHat.com>
On Mon, Oct 06, 2008 at 02:56:04PM -0400, Steve Dickson wrote:
> A while back, I believe back during the last FUDCon in Raleigh I
> talked with kylem and davej about turning off the
> "inline-functions-called-once" which inlines functions that are only
> called once. Turning off this optimization would allow SystemTap to work
> much better, especially in the NFS code...
>
> Kyle/Dave (or anybody else) remember if anything came out from that conversation?
I forgot all about that conversation.
> Is there any reason we should not remove this optimization?
I'd be really surprised if it's actually even measurable on modern CPUs.
Dave
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