Disk Performance Data
Wiscinfo
CS Home
CSL
|
|
Disk Performance Data |
Wiscinfo |
CS Home |
CSL |
These tests were run by calling the lmdd utility from the lmbench benchmark version 1.0 by Larry McVoy <lm@sgi.com>, using a ksh script . Unless otherwise indicated, the tests were run on a sparc 10/30 with 64 Meg of memory, using the motherboard SCSI port (fast/narrow).
(This test was run on a Compaq ds10 alpha, Tru64 4.0f, Interserver Ultra 2
SCSI to a Direct Data Storage RAID Box with IBM Ultrastar disks, RAID 5,
yada, yada, yada).
Data for disk (DDS-RAID)
Latency : 479 microseconds
Bandwidth (512 byte reads) 1300 KB/sec
Bandwidth (56k byte reads) 6891 KB/sec
Bandwidth (512 byte writes) 1464 KB/sec
Bandwidth (100k byte writes) 38810 KB/sec
Bandwidth (10m byte writes) 22115 KB/sec
(This test was run on a dual PII-400 with 387Meg RAM with an Apaptec
2940UW controller)
Data for disk (QUANTUM VIKING II 9.1WSE Rev: 5520)
Data for disk (/dev/sdp1)
Latency : 44 microseconds
Bandwidth (512 byte reads) 72359 KB/sec
Bandwidth (56k byte reads) 15612 KB/sec
Bandwidth (512 byte writes) 90662 KB/sec
Bandwidth (100k byte writes) 115068 KB/sec
Bandwidth (10m byte writes) 85318 KB/sec
(This test was run on a dual PII-400 with 387Meg RAM with an Apaptec
2940U2W controller running in wide single ended mode)
Data for disk (IBM UltraStar Ultra2 LVD DDRS-39130D Rev: DC1B)
Latency : 7 microseconds
Bandwidth (512 byte reads) 71664 KB/sec
Bandwidth (56k byte reads) 146543 KB/sec
Bandwidth (512 byte writes) 92524 KB/sec
Bandwidth (100k byte writes) 117297 KB/sec
Bandwidth (10m byte writes) 39898 KB/sec
(This test was run on a 600mHz Compaq Alpha au-600 workstation running
Digital Unix 4.0d with a ultra/wide (SE) Compaq QLogic controller.)
Data for disk (IBM UltraStar Ultra2 LVD /dev/rrz32g)
Latency : 352 microseconds
Bandwidth (512 byte reads) 1388 KB/sec
Bandwidth (56k byte reads) 12923 KB/sec
Bandwidth (512 byte writes) 997 KB/sec
Bandwidth (100k byte writes) 12976 KB/sec
Bandwidth (10m byte writes) 13082 KB/sec
(This test was run on a 600mHz Compaq Alpha au-600 workstation running
Digital Unix 4.0d with a ultra/wide (SE) Compaq QLogic controller.)
Data for disk (Quantum Viking II 9GB Ultra Wide /dev/rrz24h)
Latency : 380 microseconds
Bandwidth (512 byte reads) 1327 KB/sec
Bandwidth (56k byte reads) 11710 KB/sec
Bandwidth (512 byte writes) 450 KB/sec
Bandwidth (100k byte writes) 11763 KB/sec
Bandwidth (10m byte writes) 11702 KB/sec
(This test was run on a 300mHz PII Solaris 2.6/x86 system with an ASUS
motherboard. The disks were attached via an Adaptec 2940UW
controller.)
Data for disk <Quantum Viking II 9GB cyl 6910 alt 2 hd 10 sec 258> (/dev/rdsk/c1t0d0s0)
Latency : 415 microseconds
Bandwidth (512 byte reads) 1160 KB/sec
Bandwidth (56k byte reads) 12386 KB/sec
Bandwidth (512 byte writes) 491 KB/sec
Bandwidth (100k byte writes) 12409 KB/sec
Bandwidth (10m byte writes) 12879 KB/sec
(This test was run on a 300mHz PII Redhat 5.2 system, 2.0.36 kernel,
aic7xxx driver versions 5.0.19/3.2.4, with an Asus P2L97S motherboard
and an Adaptec 2940UW controller).
Data for disk <IBM-DCAS-34330W-S61A cyl 8234 alt 2 hd 6 sec 171> (/dev/sdb1)
Latency : 69 microseconds
Bandwidth (512 byte reads) 66578 KB/sec
Bandwidth (56k byte reads) 9628 KB/sec
Bandwidth (512 byte writes) 71572 KB/sec
Bandwidth (100k byte writes) 73689 KB/sec
Bandwidth (10m byte writes) 10812 KB/sec
(This test was run on a 300mHz PII Solaris system with an Asus P2L97S
motherboard and an Adaptec 2940UW controller).
Data for disk <IBM-DCAS-34330W-S61A cyl 8234 alt 2 hd 6 sec 171> (/dev/rdsk/c1t0d0s6)
Latency : 861 microseconds
Bandwidth (512 byte reads) 582 KB/sec
Bandwidth (56k byte reads) 6593 KB/sec
Bandwidth (512 byte writes) 535 KB/sec
Bandwidth (100k byte writes) 6606 KB/sec
Bandwidth (10m byte writes) 6630 KB/sec
(This test was run on a Pentium Pro 200mHz Solaris system with a no-name
motherboard and an Adaptec 2940UW controller).
Data for disk <IBM-DCAS-34330W-S61A cyl 8234 alt 2 hd 6 sec 171> (/dev/rdsk/c1t0d0s6)
Latency : 859 microseconds
Bandwidth (512 byte reads) 568 KB/sec
Bandwidth (56k byte reads) 6276 KB/sec
Bandwidth (512 byte writes) 516 KB/sec
Bandwidth (100k byte writes) 6383 KB/sec
Bandwidth (10m byte writes) 6616 KB/sec
(This test was run on a Sun fast-wide controller on an Ultra/170).
Data for disk <IBM-DDRS-39130W-S71D cyl 8186 alt 2 hd 10 sec 218> (/dev/rdsk/c1t2d0s6)
Latency : 375 microseconds
Bandwidth (512 byte reads) 1328 KB/sec
Bandwidth (56k byte reads) 10813 KB/sec
Bandwidth (512 byte writes) 1159 KB/sec
Bandwidth (100k byte writes) 10934 KB/sec
Bandwidth (10m byte writes) 10970 KB/sec
(Run on a sparc 10/50 with a Performance Technologies ultra controller in
isp emulation mode)
Data for disk <IBM-DDRS-39130W-S92A cyl 8186 alt 2 hd 10 sec 218> (/dev/rdsk/c1t5d0s1)
Latency : 721 microseconds
Bandwidth (512 byte reads) 673 KB/sec
Bandwidth (56k byte reads) 11760 KB/sec
Bandwidth (512 byte writes) 653 KB/sec
Bandwidth (100k byte writes) 11945 KB/sec
Bandwidth (10m byte writes) 11797 KB/sec
(Run on an UltraSparc 30/300 mHz PCI with a Seagate ST34501W (Cheetah)
on an ultra bus with Sun's X1032A Ultra SCSI/ethernet PCI card)
Data for disk <SEAGATE-ST34501W-0018 cyl 6571 alt 2 hd 8 sec 169> (/dev/rdsk/c1t8d0s6)
Latency : 378 microseconds
Bandwidth (512 byte reads) 1277 KB/sec
Bandwidth (56k byte reads) 13828 KB/sec
Bandwidth (512 byte writes) 83 KB/sec
Bandwidth (100k byte writes) 7639 KB/sec
Bandwidth (10m byte writes) 13057 KB/sec
(This test was run on a Sun fast-wide controller on an Ultra/170).
Data for disk <SEAGATE-ST34572W-0784 cyl 6240 alt 2 hd 8 sec 178> (/dev/rdsk/c2t6d0s6)
Latency : 472 microseconds
Bandwidth (512 byte reads) 1045 KB/sec
Bandwidth (56k byte reads) 10001 KB/sec
Bandwidth (512 byte writes) 1059 KB/sec
Bandwidth (100k byte writes) 10230 KB/sec
Bandwidth (10m byte writes) 10419 KB/sec
(This data is for an Andataco GigaRaid/SA with 8 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-through caching.
The host was the Sun Ultra/143 with PTI's Ultra-SCSI controller.)
Data for disk <ANDATACO-RLT-525-0252 cyl 60779 alt 2 hd 16 sec 128> (/dev/rdsk/c2t2d0s6)
Latency : 1042 microseconds
Bandwidth (512 byte reads) 541 KB/sec
Bandwidth (56k byte reads) 8694 KB/sec
Bandwidth (512 byte writes) 55 KB/sec
Bandwidth (100k byte writes) 1722 KB/sec
Bandwidth (10m byte writes) 1977 KB/sec
(This data is for an Andataco GigaRaid/SA with 8 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-back caching.
The host was the Sun Ultra/143 with PTI's Ultra-SCSI controller.)
Data for disk <ANDATACO-RLT-525-0252 cyl 60779 alt 2 hd 16 sec 128> (/dev/rdsk/c2t2d0s6)
Latency : 1044 microseconds
Bandwidth (512 byte reads) 541 KB/sec
Bandwidth (56k byte reads) 8625 KB/sec
Bandwidth (512 byte writes) 507 KB/sec
Bandwidth (100k byte writes) 4963 KB/sec
Bandwidth (10m byte writes) 5854 KB/sec
(This data is for an Andataco GigaRaid/SA with 8 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-through caching.
The host was the Sun Ultra/143 with Sun's fast/wide controller.)
Data for disk <ANDATACO-RLT-525-0252 cyl 60779 alt 2 hd 16 sec 128> (/dev/rdsk/c1t2d0s6)
Latency : 1110 microseconds
Bandwidth (512 byte reads) 499 KB/sec
Bandwidth (56k byte reads) 7764 KB/sec
Bandwidth (512 byte writes) 55 KB/sec
Bandwidth (100k byte writes) 1728 KB/sec
Bandwidth (10m byte writes) 1982 KB/sec
(This data is for an Andataco GigaRaid/SA with 8 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-back caching.
The host was the Sun Ultra/143 with Sun's fast/wide controller.)
Data for disk <ANDATACO-RLT-525-0252 cyl 60779 alt 2 hd 16 sec 128> (/dev/rdsk/c1t2d0s6)
Latency : 1129 microseconds
Bandwidth (512 byte reads) 502 KB/sec
Bandwidth (56k byte reads) 7826 KB/sec
Bandwidth (512 byte writes) 471 KB/sec
Bandwidth (100k byte writes) 4865 KB/sec
Bandwidth (10m byte writes) 5725 KB/sec
(This data is for an Andataco GigaRaid/SA with 5 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-through caching.
The host was the Sun Ultra/143 with Sun's fast/wide controller.)
Data for disk <ANDATACO-RLT-525-0252 cyl 34730 alt 2 hd 16 sec 128> (/dev/rdsk/c1t2d0s6)
Latency : 1087 microseconds
Bandwidth (512 byte reads) 504 KB/sec
Bandwidth (56k byte reads) 7533 KB/sec
Bandwidth (512 byte writes) 59 KB/sec
Bandwidth (100k byte writes) 2025 KB/sec
Bandwidth (10m byte writes) 2265 KB/sec
(This data is for an Andataco GigaRaid/SA with 5 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-back caching.
The host was the Sun Ultra/143 with Sun's fast/wide controller.)
Data for disk <ANDATACO-RLT-525-0252 cyl 34730 alt 2 hd 16 sec 128> (/dev/rdsk/c1t2d0s6)
Latency : 1085 microseconds
Bandwidth (512 byte reads) 454 KB/sec
Bandwidth (56k byte reads) 7557 KB/sec
Bandwidth (512 byte writes) 483 KB/sec
Bandwidth (100k byte writes) 5385 KB/sec
Bandwidth (10m byte writes) 5487 KB/sec
(This disk was on the fast/narrow bus on a sparc ultra1/143)
Data for disk <SEAGATE-ST32171N-0484 cyl 5117 alt 2 hd 5 sec 165> (/dev/rdsk/c0t2d0s6)
Latency : 279 microseconds
Bandwidth (512 byte reads) 1668 KB/sec
Bandwidth (56k byte reads) 8785 KB/sec
Bandwidth (512 byte writes) 1752 KB/sec
Bandwidth (100k byte writes) 9020 KB/sec
Bandwidth (10m byte writes) 9191 KB/sec
(This disk was on an ultra/wide bus on a sparc ultra1/143)
Data for disk <IBM-DCAS-34330W-S61A cyl 8203 alt 2 hd 6 sec 171> (/dev/rdsk/c1t0d0s6)
Latency : 844 microseconds
Bandwidth (512 byte reads) 589 KB/sec
Bandwidth (56k byte reads) 7897 KB/sec
Bandwidth (512 byte writes) 532 KB/sec
Bandwidth (100k byte writes) 7856 KB/sec
Bandwidth (10m byte writes) 7945 KB/sec
(This disk was on a fast/wide bus on a sparc ultra1/143)
Data for disk <IBM-DCAS-34330W-S61A cyl 8203 alt 2 hd 6 sec 171> (/dev/rdsk/c1t0d0s6)
Latency : 849 microseconds
Bandwidth (512 byte reads) 590 KB/sec
Bandwidth (56k byte reads) 7907 KB/sec
Bandwidth (512 byte writes) 484 KB/sec
Bandwidth (100k byte writes) 7968 KB/sec
Bandwidth (10m byte writes) 7965 KB/sec
Data for disk <SEAGATE-ST32171N-0280 cyl 5116 alt 2 hd 5 sec 165> (/dev/rdsk/c0t0d0s3)
Latency : 778 microseconds
Bandwidth (512 byte reads) 624 KB/sec
Bandwidth (56k byte reads) 6896 KB/sec
Bandwidth (512 byte writes) 646 KB/sec
Bandwidth (100k byte writes) 7373 KB/sec
Bandwidth (10m byte writes) 7494 KB/sec
Data for disk <IBM-DCAS-34330W-S61A cyl 8203 alt 2 hd 6 sec 171> (/dev/rdsk/c1t0d0s2)
Latency : 883 microseconds
Bandwidth (512 byte reads) 568 KB/sec
Bandwidth (56k byte reads) 4277 KB/sec
Bandwidth (512 byte writes) 528 KB/sec
Bandwidth (100k byte writes) 4438 KB/sec
Bandwidth (10m byte writes) 4423 KB/sec
Data for disk <SUN2.1G cyl 2733 alt 2 hd 19 sec 80> (/dev/rdsk/c0t6d0s2)
Latency : 1966 microseconds
Bandwidth (512 byte reads) 254 KB/sec
Bandwidth (56k byte reads) 3968 KB/sec
Bandwidth (512 byte writes) 44 KB/sec
Bandwidth (100k byte writes) 2779 KB/sec
Bandwidth (10m byte writes) 2936 KB/sec
Data for disk <HP C2490 cyl 2657 alt 2 hd 18 sec 87> (/dev/rdsk/c0t5d0s2)
Latency : 1563 microseconds
Bandwidth (512 byte reads) 319 KB/sec
Bandwidth (56k byte reads) 4860 KB/sec
Bandwidth (512 byte writes) 53 KB/sec
Bandwidth (100k byte writes) 3354 KB/sec
Bandwidth (10m byte writes) 3538 KB/sec
Data for disk <SUN1.05 cyl 2036 alt 2 hd 14 sec 72> (/dev/rdsk/c0t1d0s2)
Latency : 1951 microseconds
Bandwidth (512 byte reads) 253 KB/sec
Bandwidth (56k byte reads) 4066 KB/sec
Bandwidth (512 byte writes) 45 KB/sec
Bandwidth (100k byte writes) 2821 KB/sec
Bandwidth (10m byte writes) 2997 KB/sec
Data for disk <FUJITSU-M2266S-512-001D cyl 1651 alt 2 hd 15 sec 85> (/dev/rdsk/c0t0d0s2)
Latency : 1398 microseconds
Bandwidth (512 byte reads) 360 KB/sec
Bandwidth (56k byte reads) 2177 KB/sec
Bandwidth (512 byte writes) 30 KB/sec
Bandwidth (100k byte writes) 1669 KB/sec
Bandwidth (10m byte writes) 1760 KB/sec
And, just for fun (kids, please don't try this at home...)
Data for disk <DEC-RZ55 (C)DEC-1000 cyl 1199 alt 2 hd 15 sec 36> (/dev/rdsk/c0t2d0s2)
Latency : 2077 microseconds
Bandwidth (512 byte reads) 238 KB/sec
Bandwidth (56k byte reads) 1032 KB/sec
Bandwidth (512 byte writes) 29 KB/sec
Bandwidth (100k byte writes) 896 KB/sec
Bandwidth (10m byte writes) 922 KB/sec
These tests were run using Tim Bray's bonnie benchmark. Unless otherwise noted, the tests were run on a sparc 10/30 with 64 Meg of memory, using the motherboard SCSI port (fast/narrow).
(This test was run on a Compaq ds10 alpha, Tru64 4.0f, Interserver Ultra 2
SCSI to a Direct Data Storage RAID Box with IBM Ultrastar disks, RAID 5,
yada, yada, yada).
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
100 20468 55.8 12353 5.4 162411 98.6 34424 99.8 346264 100 31525.9 97.7
(This test was run on a dual PII-400 with 387Meg RAM with an Apaptec
2940UW controller)
Data for disk (QUANTUM VIKING II 9.1WSE Rev: 5520)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
100 4354 80.4 33610 45.6 14450 45.0 4923 98.9 236683 99.4 12357.9 188.5
(This test was run on a dual PII-400 with 387Meg RAM with an Apaptec
2940U2W controller running in wide single ended mode)
Data for disk (IBM UltraStar Ultra2 LVD DDRS-39130D Rev: DC1B)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
100 4501 83.2 32746 44.1 14185 48.9 4928 98.7 233174 100.2 12360.8 1
(This test was run on a 600mHz Compaq Alpha au-600 workstation running
Digital Unix 4.0d with a ultra/wide (SE) Compaq QLogic controller.)
Data for disk (IBM UltraStar Ultra2 LVD /dev/rrz32g)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
ES9 100 11594 60.1 11887 15.6 84259 95.6 19749 99.8 164965 100.0 2088.7 14.4
(This test was run on a 600mHz Compaq Alpha au-600 workstation running
Digital Unix 4.0d with a untra/wide Compaq QLogic controller.)
Data for disk (Quantum Viking II 9GB Ultra Wide /dev/rrz24h)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
Viking II 100 12946 71.5 13425 17.9 77419 95.1 19024 99.1 155759 99.9 2152.3 15.1
(This test was run on a 300mHz PII Solaris 2.6/x86 system with an ASUS
motherboard. The disks were attached via an Adaptec 2940UW
controller.)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
Viking II 100 12351 87.2 12463 31.2 12578 35.5 13747 98.4 90346 100.6 1705.3 21.3
(This test was run on a 300mHz PII Redhat 5.2 system, 2.0.36 kernel,
aic7xxx driver versions 5.0.19/3.2.4, with an Asus P2L97S motherboard
and an Adaptec 2940UW controller).
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
34330W 100 8466 73.7 7882 17.2 2810 15.9 6227 43.0 72323 91.1 2652.8 18.6
(This test was run on a 300mHz PII Solaris 2.6 system with an Asus P2L97S
motherboard and an Adaptec 2940UW controller).
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
IBM34330W 100 7695 56.0 7752 20.5 3575 12.1 9660 74.2 12815 19.3 149.6 3.3
(This test was run on a Pentium Pro 200mHz Solaris 2.6 system with a no-name
motherboard and an Adaptec 2940UW controller).
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
IBM34330W 100 7642 83.9 7743 30.8 3205 15.2 7998 89.7 11269 25.2 133.2 3.6
(This test was run on a Sun fast-wide controller on an Ultra/170).
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
IBM39130W 100 5003 59.7 9750 21.2 4785 18.1 5660 92.5 14505 23.7 149.2 3.7
(Run on a sparc 10/50 with a Performance Technologies ultra controller in
isp emulation mode)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
IBM39130W 100 2272 79.3 5466 50.1 3782 55.7 2388 97.9 10054 71.1 178.0 15.4
(Run on an UltraSparc 30/300 mHz PCI with a Seagate ST34501W (Cheetah)
on an ultra bus with Sun's X1032A Ultra SCSI/ethernet PCI card)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
ST34501W 100 6739 48.4 11165 15.4 7168 14.0 13847 97.6 21143 21.3 253.4 3.1
(This test was run on a Sun fast-wide controller on an Ultra/170).
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
ST34572W 100 7622 97.6 9998 23.8 3269 13.6 5905 98.3 10786 19.3 135.9 3.4
(This data is for an Andataco GigaRaid/SA with 8 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-through caching.
The host was the Sun Ultra/143 with PTI's Ultra-SCSI controller.)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
RAID 5 100 3205 46.6 3490 9.0 2751 9.9 5077 95.0 19314 27.8 609.7 12.3
(This data is for an Andataco GigaRaid/SA with 8 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-back caching.
The host was the Sun Ultra/143 with PTI's Ultra-SCSI controller.)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
RAID 5 100 5922 86.1 5967 15.6 4106 14.5 5277 97.9 20341 28.5 968.3 19.3
(This data is for an Andataco GigaRaid/SA with 8 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-through caching.
The host was the Sun Ultra/143 with Sun's fast/wide controller.)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
RAID5 100 3132 45.7 3455 9.1 2623 10.0 5197 97.3 16592 25.4 556.7 12.1
(This data is for an Andataco GigaRaid/SA with 8 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-back caching.
The host was the Sun Ultra/143 with Sun's fast/wide controller.)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
RAID5 100 6090 89.7 6187 16.2 3616 14.1 5131 96.5 14872 24.0 555.9 12.8
(This data is for an Andataco GigaRaid/SA with 5 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-through caching.
The host was the Sun Ultra/143 with Sun's fast/wide controller.)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
RAID5 100 3296 48.1 3750 10.2 3111 12.0 5264 98.4 20047 30.9 540.1 10.8
(This data is for an Andataco GigaRaid/SA with 5 Seagate ST19171W
9-Gig drives in a RAID 5 configuration with write-back caching.
The host was the Sun Ultra/143 with Sun's fast/wide controller.)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
RAID5 100 5652 83.0 5725 15.3 4088 15.8 5184 97.0 18019 28.0 753.6 15.8
(This test was on a fast/narrow bus on an Ultra1/143)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
ST32171N 100 6465 97.9 8610 21.1 4418 15.8 5032 97.4 22664 31.6 288.3 5.8
(This test was on a fast/wide bus on an Ultra1/143)
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
IBM34330W 100 6681 97.4 7474 18.5 3707 12.9 5248 96.9 22575 30.3 275.5 5.3
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
ST32171N 100 1854 98.6 5896 98.3 1866 59.8 1674 99.0 7827 88.7 101.0 15.0
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
IBM34330W 100 1842 97.8 4321 69.3 1756 53.4 1639 98.6 4560 58.8 83.9 13.4
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
SUN1.05 100 1806 96.7 2750 41.9 704 19.0 1657 98.8 2858 31.9 74.4 11.0
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
C2490A 100 1852 98.4 3089 47.7 949 24.6 1690 99.0 5625 60.5 115.3 15.6
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
SUN2.1G 100 1845 98.3 3911 62.2 1216 29.0 1705 99.2 5458 55.1 134.7 17.6
I did these next tests to check out the relative performance of the linux raidtools package. The particulars:
Data coming soon!