* Re: [ANNOUNCE] Tools to analyse PM and scheduling behaviour [not found] <CAP245DUSAHO_VBoBMy4KQaaA6_0a-i3Y3u4utnK8ji3UMVniyA@mail.gmail.com> @ 2014-08-13 11:22 ` Peter Zijlstra 2014-08-13 18:41 ` Amit Kucheria 0 siblings, 1 reply; 2+ messages in thread From: Peter Zijlstra @ 2014-08-13 11:22 UTC (permalink / raw) To: Amit Kucheria Cc: Ingo Molnar, Rafael J. Wysocki, Linux Kernel Mailing List, Linux PM list, Gross, Mark, Paul McKenney, Morten Rasmussen, Dietmar Eggemann, Preeti U Murthy, Daniel Lezcano, Vincent Guittot, Mike Turquette, Juri Lelli, sched-tools [-- Attachment #1: Type: text/plain, Size: 1017 bytes --] On Fri, Aug 08, 2014 at 07:24:01PM +0530, Amit Kucheria wrote: > Workload Generator Details > -------------------------- > The Workload Generator is based on rt-app. Shared resources, waits, signals > and locking order can be specified for each thread in a JSON description to > construct complex interdependencies. This allows simulation of interesting > use-cases. The repository contains examples of a mp3 and web-browsing > workload. > > The method to construct the JSON description is quite manual currently. We > capture the trace of a workload of interest (say, on Android) and analyse > it in kernelshark. We then construct the JSON description by hand until its > resultant trace looks similar to the trace from the real workload. > > The immediate goal is to expand the library to cover the common mobile > workloads. We’re also working with the rt-app maintainer to get our changes > merged. With the end goal of having a program convert a trace into a JSON description I take it? [-- Attachment #2: Type: application/pgp-signature, Size: 836 bytes --] ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [ANNOUNCE] Tools to analyse PM and scheduling behaviour 2014-08-13 11:22 ` [ANNOUNCE] Tools to analyse PM and scheduling behaviour Peter Zijlstra @ 2014-08-13 18:41 ` Amit Kucheria 0 siblings, 0 replies; 2+ messages in thread From: Amit Kucheria @ 2014-08-13 18:41 UTC (permalink / raw) To: Peter Zijlstra Cc: Ingo Molnar, Rafael J. Wysocki, Linux Kernel Mailing List, Linux PM list, Gross, Mark, Paul McKenney, Morten Rasmussen, Dietmar Eggemann, Preeti U Murthy, Daniel Lezcano, Vincent Guittot, Mike Turquette, Juri Lelli, sched-tools Peter Zijlstra <peterz@infradead.org> writes: > On Fri, Aug 08, 2014 at 07:24:01PM +0530, Amit Kucheria wrote: >> Workload Generator Details >> -------------------------- >> The Workload Generator is based on rt-app. Shared resources, waits, signals >> and locking order can be specified for each thread in a JSON description to >> construct complex interdependencies. This allows simulation of interesting >> use-cases. The repository contains examples of a mp3 and web-browsing >> workload. >> >> The method to construct the JSON description is quite manual currently. We >> capture the trace of a workload of interest (say, on Android) and analyse >> it in kernelshark. We then construct the JSON description by hand until its >> resultant trace looks similar to the trace from the real workload. >> >> The immediate goal is to expand the library to cover the common mobile >> workloads. We’re also working with the rt-app maintainer to get our changes >> merged. > > With the end goal of having a program convert a trace into a JSON > description I take it? Either that or re-evaluate if perf record and playback can actually do away with the need to do this. ^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-08-13 11:22 ` [ANNOUNCE] Tools to analyse PM and scheduling behaviour Peter Zijlstra
2014-08-13 18:41 ` Amit Kucheria
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