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| author | Mathias K <kesmtp@freenet.de> | 2011-02-04 21:15:22 +0100 |
|---|---|---|
| committer | Øyvind Harboe <oyvind.harboe@zylin.com> | 2011-02-08 09:39:59 +0100 |
| commit | 706284a8fd562d5a6e2c1f123f8cb366b7e49e7d (patch) | |
| tree | 0f3f75dcc6cea75c71853ec716ad6b59dfb28f26 /testing/examples/LPC2148Test/prj | |
| parent | 5ca7cbe2d232fcaff32598af1ef5e962e704c004 (diff) | |
| download | openocd_libswd-706284a8fd562d5a6e2c1f123f8cb366b7e49e7d.tar.gz openocd_libswd-706284a8fd562d5a6e2c1f123f8cb366b7e49e7d.tar.bz2 openocd_libswd-706284a8fd562d5a6e2c1f123f8cb366b7e49e7d.tar.xz openocd_libswd-706284a8fd562d5a6e2c1f123f8cb366b7e49e7d.zip | |
buf_set_buf around 30% speed increase
Also i have checked the input of this function and in many cases
a simple byte copy is possible.
I have added this check now and is it possible the buffer is
copied byte by byte and not bit by bit.
With byte boundary input the test looks like this:
buf_set_buf 0x02000000 iteration test:
runtime (seconds): old: 6.828559 new: 0.436191 diff: 6.392368
runtime (seconds): old: 6.853636 new: 0.430389 diff: 6.423247
runtime (seconds): old: 6.794985 new: 0.423065 diff: 6.371920
Without:
buf_set_buf 0x02000000 iteration test:
runtime (seconds): old: 6.370869 new: 5.552624 diff: 0.818245
runtime (seconds): old: 6.420730 new: 5.665887 diff: 0.754843
runtime (seconds): old: 6.583306 new: 5.599021 diff: 0.984285
Regards,
Mathias
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