HAMMER Update 17-June-2008 - HEADS UP: MEDIA CHANGED AGAIN (2.5 of 4)

Previous thread: Re: HAMMER Update 13-June-2008 - HEADS UP: MEDIA CHANGED AGAIN by Matthew Dillon on Tuesday, June 17, 2008 - 9:25 pm. (1 message)

Next thread: [amd64] reusing FreeBSD code by Jordan Gordeev on Wednesday, June 18, 2008 - 3:29 pm. (3 messages)
To: <kernel@...>
Date: Tuesday, June 17, 2008 - 9:54 pm

More media changes have gone in. Not the one I intended to put in
today so there are still two left.

Testers need to rebuild kernel / utilities and a newfs_hammer is
needed (and will be throughout this week). Please expect that the
commits going in this week will require newfs'ing for testing purposes.

56B Fixes numerous performance issues, including a very nasty 25uS crc
calculation that was being made on every B-Tree node access and every
B-Tree node modification. That calculation is now only being made
on the initial buffer load into the cache and when the modified nodes
are written out.

-Matt
Matthew Dillon
<dillon@backplane.com>

Previous thread: Re: HAMMER Update 13-June-2008 - HEADS UP: MEDIA CHANGED AGAIN by Matthew Dillon on Tuesday, June 17, 2008 - 9:25 pm. (1 message)

Next thread: [amd64] reusing FreeBSD code by Jordan Gordeev on Wednesday, June 18, 2008 - 3:29 pm. (3 messages)