Hi Pavel, Just did some benchmarking; results below.
On 5/25/07, Pavel Machek <[EMAIL PROTECTED]> wrote:
What is the performance difference between safe and unsafe version?
File size: 256K - Following as tests for original test code - not any kernel port of this. - Test with each block size repeated 5 times - taken avg. of these 5 runs. - Same file used for each test. - Used lzotest utility (included with LZO 2.02) for testing. Blocksize Comp* DU* DS* Speed% 4 59.356 211.526 195.260 7.689 8 54.623 202.712 188.369 7.075 16 50.342 196.482 183.988 6.358 32 47.499 189.800 177.455 6.504 64 44.148 178.724 167.201 6.447 128 42.125 170.229 159.257 6.445 256 41.830 155.035 146.115 5.753 * All speeds in MB/sec Comp = LZO1X-1 DU = Decompress (unsafe) DS = Decompress (safe) Speed% = ((DU-DS)/DU)*100 I have yet to see how the kernel ports compare against this original version. Cheers, Nitin - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
