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Author Topic: Only getting 60% CPU usage with optimised app  (Read 10794 times)

Kiwit

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Only getting 60% CPU usage with optimised app
« on: 02 Dec 2006, 06:36:27 pm »
This is for my XP-M 3000 Athlon Laptop in a Asus A2500D but since running the optimised app, SaH_5.15_KWSN_......, it has reduced computing time from 80k secs to 36k secs, but am only using 60% CPU.? Any ideas about getting 100% would be great.
Thanks

CPUID
 -tag: 'AuthenticAMD'
 -fullname: 'AMD Athlon(tm) Processor'
Computed name: 'AMD K7x Athlon XP (Barton)'
 -notes:
 cpus cores hyperT =threads L1    L2    L3   code
  1 *   1  *   1   =  1     64K  512K    0K   64K

 family-model  Brand  Extd:family-model  Brand [10-04a]
    6-A-0       00            00-0       000

 features: mmx 3Dnow 3Dnow+ sse

 cpuid   -eax-    -ebx-    -ecx-    -edx-
 0..0   00000001 68747541 444D4163 69746E65
 0..1   000006A0 00000000 00000000 0383F9FF
 8..0   80000008 68747541 444D4163 69746E65
 8..1   000007A0 00000000 00000000 C1CBF9FF
 8..2   20444D41 6C687441 74286E6F 5020296D
 8..3   65636F72 726F7373 00000000 00000000
 8..4   00000000 00000000 00000000 00000000
 8..5   0408FF08 FF20FF10 40020140 40020140
 8..6   00000000 41004100 02008140 00000000

 < Press [enter] for memory speed >
 Speed=2199 Mhz
    Test  :    L1   L2   RAM
    8 ints:  11773  5530  522 - Reads
    8 ints:  13192  5248  554 - Writes
     8 sse:  16562  6460  884 - Reads
     8 sse:  16594  6446  724 - Writes
 pre-cache:     33    33  964 - Reads
not-cached:     33    33  675 - Writes

 < Press [enter] key to close >

Offline Josef W. Segur

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Re: Only getting 60% CPU usage with optimised app
« Reply #1 on: 02 Dec 2006, 11:57:37 pm »
This is for my XP-M 3000 Athlon Laptop in a Asus A2500D but since running the optimised app, SaH_5.15_KWSN_......, it has reduced computing time from 80k secs to 36k secs, but am only using 60% CPU.? Any ideas about getting 100% would be great.

If the System Idle process is getting most of the rest of CPU, there could be a problem. If not, I think it may be a flaw in the reporting; certainly if the times you quote are for WUs of similar angle range the time reduction is about all you might expect from the optimizations.

If you're running the graphic version with graphics on, that might possibly give such an effect since the default graphic settings allow that to use up to 50% of the CPU time. That can be improved from the project preferences page, either "Maximum frames per second" or "Maximum CPU % for graphics" (or both) can be reduced.
                                                             Joe

Kiwit

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Re: Only getting 60% CPU usage with optimised app
« Reply #2 on: 12 Dec 2006, 04:46:23 am »
It appears that the balance of CPU% is idle. Am not running the graphics version. Cant find the preferences page, only running BOINC Manager if that makes any sense to you?

Regards
Reuben

Offline Josef W. Segur

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Re: Only getting 60% CPU usage with optimised app
« Reply #3 on: 12 Dec 2006, 11:25:47 am »
It appears that the balance of CPU% is idle. Am not running the graphics version. Cant find the preferences page, only running BOINC Manager if that makes any sense to you?

By preferences I meant the settings from the project "Your account" area. The graphics settings would be in the "SETI@home preferences"  group, but you're not using that. The "General preferences" do have some settings which could cause BOINC to think you want it to idle tasks part of the time, I suggest you look there. Or you could find the global_prefs.xml file in your BOINC directory and attach a copy here.
                                                                             Joe

Kiwit

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Re: Only getting 60% CPU usage with optimised app
« Reply #4 on: 13 Dec 2006, 02:00:54 am »
General pref's are all set to "always Available"

xml file here

<global_preferences>
    <source_project>http://setiathome.berkeley.edu/</source_project>
    <source_scheduler>http://setiboinc.ssl.berkeley.edu/sah_cgi/cgi</source_scheduler>
<mod_time>1133647693</mod_time>
<idle_time_to_run>2</idle_time_to_run>
<cpu_scheduling_period_minutes>60</cpu_scheduling_period_minutes>
<work_buf_min_days>0.01</work_buf_min_days>
<max_cpus>2</max_cpus>
<disk_interval>10</disk_interval>
<disk_max_used_gb>1</disk_max_used_gb>
<disk_max_used_pct>5</disk_max_used_pct>
<disk_min_free_gb>0.1</disk_min_free_gb>
<vm_max_used_pct>50</vm_max_used_pct>
<max_bytes_sec_down>2048000</max_bytes_sec_down>
<max_bytes_sec_up>128000</max_bytes_sec_up>
</global_preferences>

Offline Josef W. Segur

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Re: Only getting 60% CPU usage with optimised app
« Reply #5 on: 13 Dec 2006, 12:23:08 pm »
If I'm reading that correctly, you have "Do work while computer is in use?" set to No. Mine's set to Yes, and has a <run_if_user_active/> entry.

That could be the key. Every time you touch a key or move the mouse S@H would be turned off, and not come back on until you were "inactive" for 2 minutes (the <idle_time_to_run>2).
                                                                    Joe

 

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