Re: kern/53124 (FFS is slow because pmap_update doesn't scale)

To: jdolecek%NetBSD.org@localhost, netbsd-bugs%netbsd.org@localhost, gnats-admin%netbsd.org@localhost, jdolecek%NetBSD.org@localhost, mlelstv%serpens.de@localhost
Subject: Re: kern/53124 (FFS is slow because pmap_update doesn't scale)
From: jdolecek%NetBSD.org@localhost
Date: Sun, 8 Apr 2018 19:14:11 +0000 (UTC)

Synopsis: FFS is slow because pmap_update doesn't scale

State-Changed-From-To: feedback->analyzed
State-Changed-By: jdolecek%NetBSD.org@localhost
State-Changed-When: Sun, 08 Apr 2018 19:14:10 +0000
State-Changed-Why:
The system gets stuck in genfs_do_putpages() eventually with the patch,
seems never getting a page for write. Needs further investigation.

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