-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi! loop-AES-v3.6a is terrible, terrible slow. Tested on kernel 2.6.35.11. *** Using loopAES v3.6a # /usr/bin/time tar xjf xulrunner-2.0b11.source.tar.bz2 21.96user 20.86system 23:22.61elapsed 3%CPU (0avgtext+0avgdata 15664maxresident)k 132224inputs+940776outputs (3major+1511minor)pagefaults 0swaps # /usr/bin/time rm -rf mozilla-central/ 0.19user 24.34system 20:36.99elapsed 1%CPU (0avgtext+0avgdata 4832maxresident)k 0inputs+8outputs (0major+437minor)pagefaults 0swaps *** Using loopAES v3.5b - - does not compile clean. I had to apply this patch: - --- loop.c-2.6a.patched.ORIG 2010-11-09 16:32:02.000000000 +0200 +++ loop.c-2.6a.patched 2011-02-13 20:28:30.000000000 +0200 @@ -1520,7 +1520,11 @@ #endif blk_queue_max_sectors(lo->lo_queue, MAX_SECTORS); #endif +#if defined(QUEUE_FLAG_CLUSTER) lo->lo_queue->queue_flags &= ~(1 << QUEUE_FLAG_CLUSTER); +#else + lo->lo_queue->limits.cluster = 0; +#endif #if (LINUX_VERSION_CODE >= 0x20609) || defined(QUEUE_FLAG_ORDERED) loop_blk_queue_ordered(lo->lo_queue, QUEUE_ORDERED_NONE); #endif # /usr/bin/time tar xjf xulrunner-2.0b11.source.tar.bz2 20.83user 9.08system 4:50.09elapsed 10%CPU (0avgtext+0avgdata 15664maxresident)k 132056inputs+940776outputs (3major+1513minor)pagefaults 0swaps # /usr/bin/time rm -rf mozilla-central/ 0.11user 5.79system 3:02.13elapsed 3%CPU (0avgtext+0avgdata 4832maxresident)k 0inputs+0outputs (0major+437minor)pagefaults 0swaps Why is SO slow? Sincerely, Gabriel - -- // Gabriel VLASIU // // OpenGPG-KeyID : 0xE684206E // OpenGPG-Fingerprint: 0C3D 9F8B 725D E243 CB3C 8428 796A DB1F E684 206E // OpenGPG-URL : http://www.vlasiu.net/public.key -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQFNWCsbeWrbH+aEIG4RAry9AJ0bIVv6ySnasmLT+KlLUPIrqCMkjwCfbfLe AdymT+WvU/abgM44cLWRIWs= =MJ2w -----END PGP SIGNATURE-----