Hi Nilay, I think I've located the images for those benchmarks so I'll test a couple of these over the weekend and give an update.
On Wed, Mar 30, 2011 at 8:03 PM, Nilay Vaish <ni...@cs.wisc.edu> wrote: > Korey, I do not have the FftBase32 benchmark. Is it possible for you to run > the simulation with one of the following benchmarks -- > > IScsiInitiator, IScsiTarget, MutexTest, NetperfMaerts, NetperfStream, > NetperfStreamNT, NetperfStreamUdp, NetperfUdpLocal, Nfs, NfsTcp, Nhfsstone, > Ping, PovrayAutumn, PovrayBench, SurgeSpecweb, SurgeStandard, ValAccDelay, > ValAccDelay2, ValCtxLat, ValMemLat, ValMemLat2MB, ValMemLat8MB, ValStream, > ValStreamCopy, ValStreamScale, ValSysLat, ValTlbLat, Validation, bnAn > > > Which of these do you think would closely resemble FFT? > > > Nilay > > > On Wed, 30 Mar 2011, Korey Sewell wrote: > > Hi all, >> I had noticed that Ruby was running a little slower than the old M5 >> memory system and decided to run gprof on it to see if there was >> anything obvious holding things up. >> >> For 2, 4, and 8 core ALPHA_FS_MOESI_CMP_directory, SimpleCPU runs for >> the Fft benchmark, it seems that the MemoryControl::executeCycle >> conributes to nearly 30% of the runtime. Looking at the comments for >> that code, I see this: >> "// executeCycle: This function is called once per memory clock cycle" >> >> I'm not familiar with this Memory Controller code but it would seem >> that some type of optimization not requiring this to be run every >> memory cycle would speed things up a good bit. So if someone has the >> time or the need to do some Ruby optimization work (i know Nilay had >> did some previously), then I think this will be a good place to >> start... >> >> I post some of the gprof output below: >> ===== >> 2 core >> ===== >> time (%) name >> 29.17 MemoryControl::executeCycle() >> 4.19 RubyEventQueue::scheduleEventAbsolute(Consumer*, long long) >> 3.52 PerfectSwitch::wakeup() >> 3.47 Set::Set(Set const&) >> 3.46 RubyEventQueueNode::process() >> >> >> 4 core >> ===== >> time (%) name >> 27.49 MemoryControl::executeCycle() >> 4.01 RubyEventQueue::scheduleEventAbsolute(Consumer*, long long) >> 3.66 PerfectSwitch::wakeup() >> 3.59 Set::Set(Set const&) >> 3.50 RubyEventQueueNode::process() >> >> 8 core >> ===== >> time (%) name >> 26.09 MemoryControl::executeCycle() >> 4.12 Set::Set(Set const&) >> 3.91 PerfectSwitch::wakeup() >> 3.88 RubyEventQueue::scheduleEventAbsolute(Consumer*, long long) >> 3.41 RubyEventQueueNode::process() >> >> -- >> - Korey >> _______________________________________________ >> m5-dev mailing list >> m5-dev@m5sim.org >> http://m5sim.org/mailman/listinfo/m5-dev >> >> _______________________________________________ > m5-dev mailing list > m5-dev@m5sim.org > http://m5sim.org/mailman/listinfo/m5-dev > -- - Korey _______________________________________________ m5-dev mailing list m5-dev@m5sim.org http://m5sim.org/mailman/listinfo/m5-dev
