lkml.org 
[lkml]   [2008]   [Mar]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [ANNOUNCE] Ramback: faster than a speeding bullet
On Fri, 14 Mar 2008, Theodore Tso wrote:

> It depends on the workload, obviously. I thought I remember someone
> on this thread talking about benchmark where they went from ~2000 to
> ~20 ops/sec once they added fsync(). I'm sure that was an extreme
> benchmarking workload that isn't at all representative of real-life
> usage, where you're usually do something else modifying the metadata
> of many tiny files over and over again. :-)

I've seen this sort of thing with syslog, normal syslog at ~100 logs/sec,
syslog without fsync >10,000 logs/sec.

if this is your situation then battery backed cache on your controller is
the answer as it gives you almost full speed with the safety of fsync.

David Lang



\
 
 \ /
  Last update: 2008-03-14 19:03    [W:0.090 / U:1.584 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site