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Btrfs conf call

DISCUSSION Chris Mason 3 participants 3 messages Aug 27, 2008 – Aug 28, 2008 Btrfs file system

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#0 lore raw

Hello everyone,

Our regular bi-weekly btrfs conf call will be today (Wednesday):

Time: 1:30pm US Eastern (10:30am Pacific)

* Dial-in Number(s):
* Toll: 1-314-655-1416
* Toll Free: 1-877-422-0049
*
* Participant Pin access code: 209652

The agenda will cover status updates on the pending work in the btrfs-unstable tree.

-chris

#1 lore raw

Hi,

Quoted 6 lines · Chris Mason

Hello everyone,

Our regular bi-weekly btrfs conf call will be today (Wednesday):

Time: 1:30pm US Eastern (10:30am Pacific)

Quoted 9 lines

* Dial-in Number(s):
* Toll: 1-314-655-1416
* Toll Free: 1-877-422-0049
*
* Participant Pin access code: 209652

The agenda will cover status updates on the pending work in the btrfs-unstable tree.

So.. how did it went?
=)

Anyone comes forward with a sumary of the conf call?

Thanks!

Signature · 1 line
Miguel Sousa Filipe
#2 lore raw

Call summary:

Chris has been rewriting fsync to improve performance
- 10X better multi-threaded scaling for regular files
- directory fsync performance has not been addressed

Ric noted that Josef's fine-granularity timer work in the main line could boost btrfs fsync performance.

Eric has seen single stream write performance drop after v.15, his runs indicate allocator-induced stalls.

Josef is working on allocator fix round 3... round 2 had regressions in some benchmarks. Chris proposed he try a design midway between the round 1 and round 2 code.

Eric noted build problems with older kernels (2.16.18 ?) because of the btrfs NFS patch... needs volunteer to fix.

Eric and Chris discussed testing using some of the xfs tests without using the complete harness suite.

More plumber's conference discussion, Chris's btrfs talk will be fairly high level (as expected given where we are). Attendance is expected to be good on all days including the last day (so if I go, I won't leave early). How to set up the filesystem BOF is pending plumber's site update.