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BOINC/SETI@Home on SuSE 9.3: extremely slow
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Author | Message |
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![]() Send message Joined: 9 Feb 00 Posts: 11 Credit: 2,549,952 RAC: 0 ![]() |
Hi, I switcheed from Mandrake 10.1 to SuSE 9.3 and noticed that the same copy of BOINC (ver. 4.43) runs 4-5 times slower on SuSE than it used to do on Mandrake 10.1 on the same machine. The CPU looks to be pretty exploited too. Any idea on why this happens? Thanks, Jean |
![]() ![]() Send message Joined: 15 Apr 99 Posts: 1546 Credit: 3,438,823 RAC: 0 ![]() |
As i can see itfrom your stats your machine is a pentium M. My guess is that the kernel is throttleing you cpu (acpi enabled? modules loaded ?). what´s the output of "cat /proc/cpuinfo" ? it should show you the current speed you cpu runs on. regards Crunch3r ![]() Join BOINC United now! |
![]() Send message Joined: 9 Feb 00 Posts: 11 Credit: 2,549,952 RAC: 0 ![]() |
As i can see itfrom your stats your machine is a pentium M. My guess is that the kernel is throttleing you cpu (acpi enabled? modules loaded ?). ---------------------------------------------------------- cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 13 model name : Intel(R) Pentium(R) M processor 1.60GHz stepping : 6 cpu MHz : 598.198 cache size : 2048 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe est tm2 bogomips : 1185.79 ---------------------------------------------------------- |
TheMutant Send message Joined: 9 Apr 01 Posts: 11 Credit: 445,376 RAC: 0 ![]() |
Seems, the problem is solved ;-) 600 MHz aren't 1600... And because SuSE 9.3 is a resource hog, the approx 3 times slower CPU speed results in 4 times slower Seti. If you want the CPU to go full speed at all times, you'll have to disable the "Throttle CPU" option in ACPI. I don't know how it's done in SuSE apart from disabling ACPI altogether in the kernel-boot-line "vmlinuz [...] acpi=off" By the way, I would leave the settings like they are. By this the power consumption of your CPU should be very low, so (if its a notebook) the temperature of the system will stay so low, you'll be able to keep working with it on your knees. |
![]() Send message Joined: 9 Feb 00 Posts: 11 Credit: 2,549,952 RAC: 0 ![]() |
Not really. As I said, I was comparing the performance with the one I had with Mandrake 10.1 on the same machine - no changes whatsoever hardwarewise. The statement about SuSE 9.3 as being a resource hog, I'm not sure I agree there - all the other applications I run behave at least at the same level as in the previous case (Mandrake 10.1), if not even sensibly better. Why would BOINC be different? I will check the throttle setting - thanks for pointing that out that might be and explanation - but 4-5 times slowdown? Doesn't quite add up. And no, I don't quite care about working with it on my lap - I never do that (I don't quite understand why the laptops are presented as a "lap" thing - I'd say one can hardly find a more uncomfortable position than that one. :-) :-) :-) Jean |
sebhome Send message Joined: 28 Oct 02 Posts: 1 Credit: 84,298 RAC: 0 ![]() |
Hi! I'm also using SuSE 9.3 and it's also running awfully slow!Here are my CPU stats: achilles:~ # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Pentium(R) 4 CPU 3.20GHz stepping : 1 cpu MHz : 3201.424 cache size : 1024 KB physical id : 0 siblings : 2 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe pni monitor ds_cpl cid xtpr bogomips : 6340.60 processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Pentium(R) 4 CPU 3.20GHz stepping : 1 cpu MHz : 3201.424 cache size : 1024 KB physical id : 0 siblings : 2 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe pni monitor ds_cpl cid xtpr bogomips : 6389.76 I'm using an IBM xSeries 206. And that's what i get in boinc: Measured floating point speed 675.43 million ops/sec Measured integer speed 1274.61 million ops/sec a little slow, ay? when using MS Win XP Home on a machine with a AuthenticAMD AMD Athlon(tm) 64 Processor 3200+ i get: Measured floating point speed 2000 million ops/sec Measured integer speed 3702.95 million ops/sec what am i doing wrong??? |
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