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From: | Charles Duffy |
Subject: | [Qemu-devel] Re: [BUG] Regression of exec migration |
Date: | Tue, 01 Sep 2009 15:37:10 -0500 |
User-agent: | Thunderbird 2.0.0.22 (X11/20090608) |
Pierre Riteau wrote:
I'm afraid this solves the problem only because you disabled non blocking operations on the file descriptor, effectively reverting 907500095851230a480b14bc852c4e49d32cb16d.See comment inline.
Indeed -- fixing this oversight, I'm seeing 2m30s to write an 84mb ramsave.This doesn't seem to square with Anthony's suggestion that the f* functions are to blame; we're still doing an fdopen() call and using f* on incoming migrations, but it's not incoming migrations where we're having performance issues.
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