I/O regression after 2.6.0-test5

That patch helps the AIM7 database load a little, but the big regression is still there.

2.6.0-test8 = vanilla
2.6.0-test8-as = vanilla + as-iosched.c from test5 2.6.0-test8-asc2 = vanilla + patch.

AIM7 dbase workloa

kernel                   Tasks   Jobs/Min        Real    CPU
2.6.0-test8-as           32	601.0		316.3	134.0
2.6.0-test8-as2          32	304.3		624.6	128.8
2.6.0-test8              32	299.8		634.0	128.6

2.6.0-test8-as           64	782.6		485.8	259.2
2.6.0-test8-as2          64	458.2		829.8	245.7
2.6.0-test8              64	450.5		843.9	246.5

2.6.0-test8-as           96	869.1		656.1	387.6
2.6.0-test8              96	549.7		1037.4	366.0
2.6.0-test8-as2          96	543.4		1049.4	370.0

2.6.0-test8-as           128	919.3		827.0	522.8
2.6.0-test8-as2          128	564.1		1348.0	496.6
2.6.0-test8              128	558.7		1360.8	497.6

2.6.0-test8-as           160	955.0		995.2	650.3
2.6.0-test8-as2          160	534.2		1779.2	618.2
2.6.0-test8              160	522.1		1820.2	612.2

2.6.0-test8-as           192	981.9		1161.5	790.9
2.6.0-test8-as2          192	535.6		2129.3	746.5
2.6.0-test8              192	515.5		2212.4	742.7

2.6.0-test8-as           224	1002.3		1327.5	910.2
2.6.0-test8              224	529.9		2510.8	859.5
2.6.0-test8-as2          224	526.4		2527.5	852.9

2.6.0-test8-as           256	1009.9		1505.7	1027.7
2.6.0-test8              256	552.4		2753.0	980.4
2.6.0-test8-as2          256	548.9		2770.4	975.3

AIM7 fserver workload

kernel                   Tasks   Jobs/Min        Real    CPU
2.6.0-test8-as           4	80.5		301.0	37.0
2.6.0-test8-as2          4	46.4		521.9	42.5
2.6.0-test8              4	42.3		573.6	40.9

2.6.0-test8-as           8	133.0		364.6	64.0
2.6.0-test8              8	63.3		765.7	71.6
2.6.0-test8-as2          8	59.9		809.1	74.4

2.6.0-test8-as           12	166.7		436.3	93.4
2.6.0-test8              12	83.2		874.2	95.0
2.6.0-test8-as2          12	62.6		1161.5	99.5

2.6.0-test8-as           16	175.9		551.2	111.5
2.6.0-test8              16	87.5		1108.4	102.5
2.6.0-test8-as2          16	84.1		1152.9	109.6

2.6.0-test8-as           20	186.3		650.7	133.8
2.6.0-test8              20	105.0		1154.6	136.7
2.6.0-test8-as2          20	101.3		1196.4	135.8

2.6.0-test8-as           24	202.8		717.3	161.2
2.6.0-test8-as2          24	121.4		1198.0	164.1
2.6.0-test8              24	111.2		1308.1	162.2

2.6.0-test8-as           28	207.1		819.3	200.0
2.6.0-test8              28	130.7		1297.9	185.8
2.6.0-test8-as2          28	128.0		1326.1	190.3

2.6.0-test8-as           32	210.6		920.7	226.5
2.6.0-test8              32	134.2		1444.5	212.9
2.6.0-test8-as2          32	122.4		1583.7	217.5

AIM7 shared workload

kernel                   Tasks   Jobs/Min        Real    CPU
2.6.0-test8-as           64	1949.6		191.1	170.8
2.6.0-test8-as2          64	880.0		423.3	166.6
2.6.0-test8              64	829.1		449.3	167.8

2.6.0-test8-as           128	2148.3		346.8	339.2
2.6.0-test8-as2          128	1128.7		660.0	331.4
2.6.0-test8              128	1105.2		674.1	330.5

2.6.0-test8-as           192	2265.7		493.2	507.1
2.6.0-test8              192	1320.0		846.6	504.7
2.6.0-test8-as2          192	1317.8		848.0	503.3

2.6.0-test8-as           256	2382.9		625.3	678.0
2.6.0-test8              256	1462.1		1019.0	672.7
2.6.0-test8-as2          256	1453.3		1025.2	670.9

2.6.0-test8-as           320	2450.5		760.0	853.7
2.6.0-test8              320	1573.0		1184.0	845.2
2.6.0-test8-as2          320	1564.0		1190.8	848.2

2.6.0-test8-as           384	2517.4		887.8	1030.6
2.6.0-test8-as2          384	1609.8		1388.3	1026.2
2.6.0-test8              384	1601.1		1395.9	1028.7

2.6.0-test8-as           448	2547.5		1023.5	1214.4
2.6.0-test8              448	1659.7		1571.0	1205.2
2.6.0-test8-as2          448	1656.4		1574.2	1201.6

2.6.0-test8-as           512	2594.6		1148.5	1389.7
2.6.0-test8-as2          512	1620.4		1839.0	1378.0
2.6.0-test8              512	1614.4		1845.8	1381.5

--
Randy Hron
http://home.earthlink.net/~rwhron/kernel/bigbox.html