On Mon, Jul 19, 2010 at 01:25:06PM -0400, Joe Landman wrote: > Joe Landman wrote: > >Greetings > > > > We are playing with some SSDs, and as usual, we want to use fio > >for our testing regime. So we set up a simple streaming write: > > Ok, I figured it out. > > Add zero_buffers=1 to the job specification. Then we get this: > > Run status group 0 (all jobs): > WRITE: io=32,706MB, aggrb=535MB/s, minb=548MB/s, maxb=548MB/s, > mint=61133msec, maxt=61133msec Interesting. Why not initializing bufferes with zero leads to poor performance? Vivek > > > > -- > Joseph Landman, Ph.D > Founder and CEO > Scalable Informatics Inc. > email: landman@xxxxxxxxxxxxxxxxxxxxxxx > web : http://scalableinformatics.com > http://scalableinformatics.com/jackrabbit > phone: +1 734 786 8423 x121 > fax : +1 866 888 3112 > cell : +1 734 612 4615 > -- > To unsubscribe from this list: send the line "unsubscribe fio" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
