Messages in this thread | | | Date | Tue, 29 May 2007 11:18:29 +0530 | From | "Nitin Gupta" <> | Subject | Re: [RFC] LZO de/compression support - take 6 |
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On 5/29/07, Bret Towe <magnade@gmail.com> wrote: > On 5/28/07, Nitin Gupta <nitingupta910@gmail.com> wrote: > > Hi, > > > > Attached is tester code used for testing. > > (developed by Daniel Hazelton -- modified slightly to now use 'take 6' > > version for 'TinyLZO') > > > > Cheers, > > Nitin > > > > On 5/28/07, Nitin Gupta <nitingupta910@gmail.com> wrote: > > > (Using tester program from Daniel) > > > > > > Following compares this kernel port ('take 6') vs original miniLZO code: > > > > > > 'TinyLZO' refers to this kernel port. > > > > > > 10000 run averages: > > > 'Tiny LZO': > > > Combined: 61.2223 usec > > > Compression: 41.8412 usec > > > Decompression: 19.3811 usec > > > 'miniLZO': > > > Combined: 66.0444 usec > > > Compression: 46.6323 usec > > > Decompression: 19.4121 usec > > > > > > Result: > > > Overall: TinyLZO is 7.3% faster > > > Compressor: TinyLZO is 10.2% faster > > > Decompressor: TinyLZO is 0.15% faster > > > > > > > > > 10000 run averages: > 'Tiny LZO': > Combined: 112.6642 usec > Compression: 56.3321 usec > Decompression: 56.3321 usec > 'miniLZO': > Combined: 77.6642 usec > Compression: 56.3416 usec > Decompression: 21.3226 usec > > now the interesting bit I thought was the following > root@mini:/usr/src/lzo1x-test-4# ./fulltest > [test_lzo.c::compress (93)] run took 42 microseconds > [test_lzo.c::decompress (127)] run took 20 microseconds > root@mini:/usr/src/lzo1x-test-4# ./tinytest > [test.c::compress (91)] run took 44 microseconds > [test.c::decompress (117)] BUG: lzo1x_decompress has failed ( t == -6 ) > [test.c::main (149)] BUG: Decompression routine failure >
Did you use x86 for above test? Maybe some problem with testing script? What data did you use for this test?
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