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Re: Scheduling x86 dispatch windows

From: fche at redhat dot com (Frank Ch. Eigler)
To: Andi Kleen <andi at firstfloor dot org>
Cc: Joern Rennecke <amylaar at spamcop dot net>, Ian Lance Taylor <iant at google dot com>, Quentin Neill <quentin dot neill dot gnu at gmail dot com>, Jeff Law <law at redhat dot com>, "H.J. Lu" <hjl dot tools at gmail dot com>, binutils at sourceware dot org, gcc at gcc dot gnu dot org
Date: Sun, 13 Jun 2010 11:27:46 -0400
Subject: Re: Scheduling x86 dispatch windows
References: <AANLkTilw4HSc4oMj56JtzK61oJV2kf2I9CyvH6Ti-GX0@mail.gmail.com> <4C1144F7.1040708@redhat.com> <20100610223959.GA29759@caradoc.them.org> <AANLkTil3tRbx7xvQejul9-QWtutCVDPHwrLFjkJJZqRT@mail.gmail.com> <20100611155802.GA19042@caradoc.them.org> <AANLkTimsuhmNvRvaDju0jWUQ8YS8UTgqfxtgrXihnSHk@mail.gmail.com> <87y6ekofyw.fsf@basil.nowhere.org> <mcrr5kcjdl2.fsf@dhcp-172-17-9-151.mtv.corp.google.com> <20100613100702.GA31464@basil.fritz.box> <20100613071403.psorcpstz0gso8wc-nzlynne@webmail.spamcop.net> <20100613132716.GG31464@basil.fritz.box>

Andi Kleen <andi@firstfloor.org> writes:

> [...]
> Yes but you can't easily pass data back, like accurate instruction lengths.

Wouldn't it be too late by then?  Or are you imagining having the
compiler pass trial data to the assembler to create a feedback loop?

- FChE

References:
- Re: Scheduling x86 dispatch windows
  - From: H.J. Lu
- Re: Scheduling x86 dispatch windows
  - From: Jeff Law
- Re: Scheduling x86 dispatch windows
  - From: Daniel Jacobowitz
- Re: Scheduling x86 dispatch windows
  - From: Quentin Neill
- Re: Scheduling x86 dispatch windows
  - From: Daniel Jacobowitz
- Re: Scheduling x86 dispatch windows
  - From: Quentin Neill
- Re: Scheduling x86 dispatch windows
  - From: Andi Kleen
- Re: Scheduling x86 dispatch windows
  - From: Ian Lance Taylor
- Re: Scheduling x86 dispatch windows
  - From: Andi Kleen
- Re: Scheduling x86 dispatch windows
  - From: Joern Rennecke
- Re: Scheduling x86 dispatch windows
  - From: Andi Kleen

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