Re: Tux3 Report: Faster than tmpfs, what?

2013-05-13 Thread Andreas Dilger
On 2013-05-13, at 17:22, Daniel Phillips daniel.raymond.phill...@gmail.com wrote: Hi Ted, You said: ...any advantage of decoupling the front/back end is nullified, since fsync(2) requires a temporal coupling After after pondering it for a while, I realized that is not completely

Re: Tux3 Report: Faster than tmpfs, what?

2013-05-11 Thread Daniel Phillips
Hi Dave, Thanks for the catch - I should indeed have noted that modified dbench was used for this benchmark, thus amplifying Tux3's advantage in delete performance. This literary oversight does not make the results any less interesting: we beat Tmpfs on that particular load. Beating tmpfs at

Re: Tux3 Report: Faster than tmpfs, what?

2013-05-11 Thread james northrup
also interesting information... Study of 2,047 papers on PubMed finds that two-thirds of retracted papers were down to scientific misconduct, not error On Fri, May 10, 2013 at 11:12 PM, Daniel Phillips daniel.raymond.phill...@gmail.com wrote: Hi Dave, Thanks for the catch - I should indeed

Re: Tux3 Report: Faster than tmpfs, what?

2013-05-11 Thread Theodore Ts'o
On Fri, May 10, 2013 at 11:12:27PM -0700, Daniel Phillips wrote: Hi Dave, Thanks for the catch - I should indeed have noted that modified dbench was used for this benchmark, thus amplifying Tux3's advantage in delete performance. Dropping fsync() does a lot more than amplify Tux3's