Jul/2020 Update! I have redone all Indy, Indigo2, O2, Octane and most IRIS Indigo tests using exactly the same model disk (Seagate 36GB 15K ST336753LC), all older systems with 6.5.22m, all newer systems with 6.5.30m, so the data is now much more comparable than the old results. I have obtained a SCSI2SD V6 card and will try that out later in targeted systems, along with one or two SATA SSDs using a SCSI/SATA bridge box. In the future I might also add just a few specific O2/Octane tests using the Fujitsu MAS3367NC and MAX3036NC respectively, since these are the disk models I normally use and supply in such systems. Note that I couldn't get the ST336753LC to work in Onyx, had to use the ST3300655LC instead.
The newer conversion command used is:
timex dmconvert -vf qt -p video,rate=25,size=184x144,comp=qt_mjpega,il=odd,engine=sw,squal=0.95,tqual=0.75 movie1.mov outfile.mov
Though this test only utilises one CPU, I've included the CPU count anyway. Older results done with just a stopwatch and MediaConvert are those without sub-second timings (I will update these later using dmconvert when I can, which will take a while since at present I do not have any Fuels faster than 600MHz). Eventually I want to have all the main results completed using the same model disk. Note the "Updated" column is for my own reference and will eventually be removed.
CPU No. L2/L3 IRIX Time Disk System Type CPUs MHz Cache Version m:ss.ss Type Updated? NOTES Tezro R16000 4 1000 16MB 6.5.26m 0:08.70 1 N Fuel R16000 1 900 8MB 6.5.26m 0:09.42 1 N Fuel R16000 1 800 4MB 6.5.26m 0:10.89 1 N Origin350 R16000 4 700 4MB 6.5.26f 0:12.39 2 N Tezro R16000 4 700 4MB 6.5.26m 0:12 ? N Fuel R16000 1 700 4MB 6.5.26m 0:12 ? N Origin300 R14000 2 600 4MB 6.5.30m 0:14.20 3 N Fuel R14000 1 600 4MB 6.5.26m 0:14.31 1 N Octane R14000 2 600 2MB 6.5.30m 0:15.77 3 Y Fuel R14000 1 500 2MB 6.5.26m 0:19 ? N Octane R12000 2 400 2MB 6.5.30m 0:22.35 3 Y Octane R12000 1 400 2MB 6.5.30m 0:22.83 3 Y Octane R12000 1 360 2MB 6.5.30m 0:24.92 3 Y Octane R12000 2 350 1MB 6.5.26m 0:26.88 1 N O2 R12000 1 400 2MB 6.5.30m 0:28.09 3 Y Octane R12000 1 300 2MB 6.5.30m 0:29.87 3 Y Octane R12000 1 270 2MB 6.5.30m 0:33.29 3 Y O2 R7000 1 600 256K/1MB 6.5.30m 0:37.08 3 Y Octane R10000 1 250 2MB 6.5.30m 0:37.49 3 Y CPU mod; was an R12K/300 2MB, core swapped with an R10K/250 for O2 and clock changed to 250. O2 R12000 1 300 1MB 6.5.30m 0:38.23 3 Y Octane R10000 1 250 1MB 6.5.30m 0:38.88 3 Y O2 R12000 1 270 1MB 6.5.30m 0:40.71 3 Y O2 R10000 1 250 1MB 6.5.30m 0:42.02 3 Y Octane R10000 1 225 1MB 6.5.30m 0:43.25 3 Y O2 R7000 1 350 256K/1MB 6.5.30m 0:45.36 3 Y Origin200 R10000 2 180 1MB 6.5.26m 0:46 ? N O2 R10000 1 195 1MB 6.5.30m 0:46.26 3 Y Octane R10000 1 195 1MB 6.5.30m 0:51.55 3 Y O2 R5200 1 300 1MB 6.5.30m 0:53.85 3 Y Indigo2 R10000 1 195 1MB 6.5.22m 0:55.48 3 Y Octane R10000 1 175 1MB 6.5.30m 0:57.79 3 Y Indigo2 R10000 1 175 1MB 6.5.22m 1:00.11 3 Y O2 R10000 1 175 1MB 6.5.30m 1:00.59 3 Y O2 R10000 1 150 1MB 6.5.30m 1:05.47 3 Y O2 R5000SC 1 200 1MB 6.5.30m 1:08.34 3 Y O2 R5000SC 1 180 512K 6.5.30m 1:20.00 3 Y O2 R5000SC 1 200 1MB 6.3 1:25 ? N Onyx R4400SC 1 250 4MB 6.5.22m 1:32.78 1 N O2 R5000PC 1 180 6.5.30m 1:35.01 3 Y Indigo2 R4400SC 1 200 2MB 6.5.22m 1:38.14 3 Y Onyx R4400SC 4 200 4MB 6.5.22m 1:51.71 6 Y Disk connected via 10MB/sec SE bus. Indigo2 R4400SC 1 200 2MB 6.5.22m 1:59.02 3 Y Indy R5000SC 1 150 512K 6.5.22m 2:03.58 3 Y Indy R4400SC 1 200 1MB 6.5.22m 2:05.86 3 Y Indigo2 R4400SC 1 200 1MB 6.5.22m 2:07.51 3 Y Indy R5000SC 1 150 512K 6.5.22m 2:16.97 3 Y Indy R5000PC 1 150 6.5.22m 2:29.03 3 Y IRIS Indigo R4400SC 1 150 1MB 6.5.22m 2:41.78 3 Y Indy R4400SC 1 150 1MB 6.5.22m 2:44.74 3 Y Indigo2 R4400SC 1 150 1MB 6.5.22m 2:45.22 3 Y Indy R4600SC 1 133 512K 6.5.22m 2:54.59 3 Y Indy R4600PC 1 133 6.5.22m 3:18.44 3 Y Indy R4600PC 1 100 6.5.22m 3:58.12 3 Y IRIS Indigo R4000SC 1 100 1MB 6.5.22m 4:10.95 3 Y Indy R4000SC 1 100 1MB 6.5.22m 4:11.48 3 Y Table 9 Disk Refs: [1] Seagate 1" ST336704LCV 36GB 10K SCA [2] COMPAQ 1" BD1468A4B5 146GB 10K SCA [3] Seagate 36GB 15K BF03685A35 (ST336753LC) [4] Fujitsu MAS3367NC 36GB 15K (Worldisk MX03367SC800600S) [5] Fujitsu MAX3036NC 36GB 15K (Worldisk MX03036SC800600X) [6] Seagate ST3300655LC 300GB 15K
Notice that processing is forced to be CPU-only, so this time O2s show no advantage compared to other systems.
Systems which have no graphics head are accessed remotely from another SGI (I use an O2 via 100Mbit link), the exception being the old 180MHz Origin200 result which was done via remote display of MediaConvert (I'll redo this when I can).
Prior to running these tests, I shut down mediad and SGI Apache to reduce background noise.
Lastly, note that O2 systems may be slightly faster when operating with lower display resolutions and/or bit depths.
Feedback on this page is most welcome!