[Bug 23954] New: Threads not allocated to multiple processors.

wine-bugs at winehq.org wine-bugs at winehq.org
Mon Aug 9 17:02:03 CDT 2010


http://bugs.winehq.org/show_bug.cgi?id=23954

           Summary: Threads not allocated to multiple processors.
           Product: Wine
           Version: 1.3.0
          Platform: x86
               URL: http://systester.sourceforge.net/
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: kphillisjr at gmail.com


when running systester with multiple threads, the program does not properly run
in parallel... Threads are created, and run, but they are not parallel. 

Example Single-Thread run: (512k digits)
systester-cli.exe  -gausslg 512K -turns 1 -threads 1
Result:  19   512K  N/A   0h  0m  5.318s

Example multi-threaded run: (512k digits)
systester-cli.exe  -gausslg 512K -turns 1 -threads 4
Result: 19   512K  OK   0h  0m 15.864s
Expected result: around 7s.

Example Single-Thread run: (1M digits)
systester-cli.exe  -gausslg 1M -turns 1 -threads 1
result:    20     1M  N/A   0h  0m 13.438s

Example multi-threaded run: (1M digits, 4 threads)
systester-cli.exe  -gausslg 1M -turns 1 -threads 4
result:    20     1M  OK   0h  0m 53.486s
Expected Result: about 15s.

example single-thread run: (1M digits, 1 thread, benchmark mode)
systester-cli.exe  -gausslg 1M -turns 1 -threads 1 -bench
result:    20     1M  N/A   0h  0m 13.418s

Example multi-threaded run: (1M digits, 4 threads, benchmark mode)
systester-cli.exe  -gausslg 1M -turns 1 -threads 4 -bench
result:     20     1M  N/A   0h  0m 50.798s
expected result: around 15s.

Test system:
Athlon II x4 630
Ubuntu 10.04 (amd64)

-- 
Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email
Do not reply to this email, post in Bugzilla using the
above URL to reply.
------- You are receiving this mail because: -------
You are watching all bug changes.



More information about the wine-bugs mailing list