Re: PGO and LTO session preparation

2012-08-16 Thread Mans Rullgard
On 16 August 2012 13:04, Mans Rullgard wrote: > On 15 August 2012 22:38, Mans Rullgard wrote: >> On 15 August 2012 17:17, Matthew Gretton-Dann >> wrote: >>> The performance of PGO on 'a popular embedded benchmark' is 14% >>> improvement, LTO is 7%. Don't know both together, or SPEC. >> >> On 'a

Re: PGO and LTO session preparation

2012-08-16 Thread Mans Rullgard
On 15 August 2012 22:38, Mans Rullgard wrote: > On 15 August 2012 17:17, Matthew Gretton-Dann > wrote: >> The performance of PGO on 'a popular embedded benchmark' is 14% >> improvement, LTO is 7%. Don't know both together, or SPEC. > > On 'a popular media coding library' PGO gains 2-5% in genera

Re: PGO and LTO session preparation

2012-08-15 Thread Mans Rullgard
On 15 August 2012 17:17, Matthew Gretton-Dann wrote: > The performance of PGO on 'a popular embedded benchmark' is 14% > improvement, LTO is 7%. Don't know both together, or SPEC. On 'a popular media coding library' PGO gains 2-5% in general, in one case as much as 11%. The relative gains are l

Re: PGO and LTO session preparation

2012-08-15 Thread Matthew Gretton-Dann
On 15 August 2012 05:36, Michael Hope wrote: > Hi Matt. I've fleshed out the Etherpad for the PGO and LTO session at: > http://pad.linaro.org/GzRj35tXFt I've expanded it a bit further. > It's a topic list that needs some specifics. Could you make sure we > have basic answers to any correctnes

PGO and LTO session preparation

2012-08-14 Thread Michael Hope
Hi Matt. I've fleshed out the Etherpad for the PGO and LTO session at: http://pad.linaro.org/GzRj35tXFt It's a topic list that needs some specifics. Could you make sure we have basic answers to any correctness or performance questions? Ramana, could you add the specifics from the performance c