On Sat, Aug 20, 2011 at 4:34 PM, Tim Bisson <biss...@mac.com> wrote: > Hi All, > > I've updated the TRIM patches to include Sam Greear's comments. Thanks Sam. > > The updated code and graph below can be found here: > http://www.box.net/shared/0os5q17q12f68p7k9r89 > > I also created a graph showing the effect of "random small writes" on > sequential read performance on an SSD. What I did was TRIM the device, then > dirty the device for X minutes, then sequentially read through the entire > device. The graph shows the average read throughput of reading the entire > device. > > This implies that if you end up doing a lot of small-write updates and > sequential reads, you should use TRIM... > > I'm trying to get numbers while using online UFS trim, but I'm still trying > to debug the "fsstress & UFS" bug (appears on master w/out TRIM too): > http://bugs.dragonflybsd.org/issue2102 > > Thanks, > Tim > > >
Tim, Is this "whole_thing.diff" ready to commit in your opinion? Best, Sam
