Messages in this thread | | | Date | Mon, 14 Jul 2003 17:09:40 -0300 (BRT) | From | Marcelo Tosatti <> | Subject | Re: RFC on io-stalls patch |
| |
On Mon, 14 Jul 2003, Jens Axboe wrote:
> Some initial results with the attached patch, I'll try and do some more > fine grained tomorrow. Base kernel was 2.4.22-pre5 (obviously), drive > tested is a SCSI drive (on aic7xxx, tcq fixed at 4), fs is ext3. I would > have done ide testing actually, but the drive in that machine appears to > have gone dead. I'll pop in a new one tomorrow and test on that too. > > no_load: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 2 134 196.3 0.0 0.0 1.00 > 2.4.22-pre5-axboe 3 133 196.2 0.0 0.0 1.00 > ctar_load: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 3 235 114.0 25.0 22.1 1.75 > 2.4.22-pre5-axboe 3 194 138.1 19.7 20.6 1.46 > xtar_load: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 3 309 86.4 15.0 14.9 2.31 > 2.4.22-pre5-axboe 3 249 107.2 11.3 14.1 1.87 > io_load: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 3 637 42.5 120.2 18.5 4.75 > 2.4.22-pre5-axboe 3 540 50.0 103.0 18.1 4.06 > io_other: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 3 576 47.2 107.7 19.8 4.30 > 2.4.22-pre5-axboe 3 452 59.7 85.3 19.5 3.40 > read_load: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 3 150 181.3 8.1 9.3 1.12 > 2.4.22-pre5-axboe 3 152 178.9 8.2 9.9 1.14
Awesome. I'll add it in -pre6.
Thanks a lot Jens.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |