[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)
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