I just ran on ubuntu 64bit with mono 2.10.1 and got better numbers than your 2.6.7. I had to run somewhere quick but will publish the numbers when I get back. On Aug 27, 2011 11:16 AM, "Jonathan Shore" <jonathan.sh...@gmail.com> wrote: > > My machine is an old 2006 Mac Pro 1,1 2 x Xeon 5130 (64 bit) running OSX lion. Here are the respective versions of mono: > > Mono on OSX: > > Mono JIT compiler version 2.10.4 (tarball Mon Aug 8 22:03:39 EDT 2011) > Copyright (C) 2002-2011 Novell, Inc, Xamarin, Inc and Contributors. www.mono-project.com > TLS: normal > SIGSEGV: normal > Notification: kqueue > Architecture: x86 > Disabled: none > Misc: debugger softdebug > LLVM: yes(2.9svn-mono) > GC: Included Boehm (with typed GC) > > > Mono on Ubuntu 11.04 (running in VMWare VM on same machine): > > Mono JIT compiler version 2.6.7 (Debian 2.6.7-5ubuntu3) > Copyright (C) 2002-2010 Novell, Inc and Contributors. www.mono-project.com > TLS: __thread > GC: Included Boehm (with typed GC and Parallel Mark) > SIGSEGV: altstack > Notifications: epoll > Architecture: amd64 > Disabled: none > > > Here is the Mac OSX mono 2.10.4 run: > > $ mono main.exe > Running benchmark > struct sum: 5000089998356.48, time: 9.010549 secs > class sum: 5000089998356.48, time: 30.67357 secs > > Here is the Ubuntu 11.04 mono 2.6.7 run: > > $ mono main.exe > Running benchmark > struct sum: 5000089998356.48, time: 2.737732 secs > class sum: 5000089998356.48, time: 7.83984 secs > > Note that the running time for mono 2.6.7 is ~4x faster than mono 2.10.4 on the same box (and the linux run has the disadvantage of running on a VM). The struct test is most likely not exercising the GC and the later is. I suspect given the consistent performance difference is *not* a GC issue, rather a difference in the JIT code generation. > > Let me know if there is other information I can provide. Thanks. > > Jonathan > > On Aug 27, 2011, at 1:52 PM, Slide wrote: > >> >> >> On Sat, Aug 27, 2011 at 10:27 AM, Jonathan Shore < jonathan.sh...@gmail.com> wrote: >> Hi, >> >> I was doing some benchmarks of struct vs class based creation (I have an application that will generate millions of small objects). I was doing the tests in a ubuntu 11.4 VM on my mac pro and found the following: >> >> mono 2.6.7 was 4x faster on my linux VM than 2.10.4 running on OSX (same machine) >> >> I don't know whether this may be because of one of the following: >> >> - performance in 2.10.4 regressed vs 2.6.7 >> - mono JIT implementation for OSX has a completely different JiT codebase and does not perform >> - difference in GC (only relevant for second part of the test) >> >> Note that I tried this with separate compilations with mcs -optimize+ on both environments as well as running the same exe on both. >> >> I can live with slower performance on OSX, but want to make sure that linux and windows versions of mono 2.10.x have the performance of 2.6.7 or better. >> >> Can someone clue me in? I've included the simple test code with this posting. >> >> Thanks >> >> Jonathan >> >> >> >> Can you publish your benchmark numbers and for what machines you are running on? >> >> slide >> >> -- >> slide-o-blog >> http://slide-o-blog.blogspot.com/ >
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