aimania@killer.DALLAS.TX.US (Walter Rothe) (11/16/88)
Following were done on 1.2 with ram:, vdk:, and microbotics stardrive ST225N
Could not open RAM:diskperfAAA/diskperfAAB
File create/delete: create 6 files/sec, delete 2 files/sec
Directory scan: 0 entries/sec
Seek/read test: 47 seek/reads per second
r/w speed: buf 512 bytes, rd 187245 byte/sec, wr 104857 byte/sec
r/w speed: buf 4096 bytes, rd 655360 byte/sec, wr 174762 byte/sec
r/w speed: buf 8192 bytes, rd 655360 byte/sec, wr 187245 byte/sec
r/w speed: buf 32768 bytes, rd 873813 byte/sec, wr 201649 byte/sec
File create/delete: create 6 files/sec, delete 90 files/sec
Directory scan: 70 entries/sec
Could not create vdk:diskperfAGF
r/w speed: buf 512 bytes, rd 201649 byte/sec, wr 79437 byte/sec
r/w speed: buf 4096 bytes, rd 524288 byte/sec, wr 124830 byte/sec
r/w speed: buf 8192 bytes, rd 655360 byte/sec, wr 131072 byte/sec
r/w speed: buf 32768 bytes, rd 873813 byte/sec, wr 131072 byte/sec
File create/delete: create 3 files/sec, delete 13 files/sec
Directory scan: 40 entries/sec
Seek/read test: 42 seek/reads per second
r/w speed: buf 512 bytes, rd 19562 byte/sec, wr 15065 byte/sec
r/w speed: buf 4096 bytes, rd 23405 byte/sec, wr 15420 byte/sec
r/w speed: buf 8192 bytes, rd 23831 byte/sec, wr 15511 byte/sec
r/w speed: buf 32768 bytes, rd 24049 byte/sec, wr 15511 byte/sec
----------------------------------------------------------------------------
Following was tested with ST225N and Stardrive with Fastmode
on the fastfile system. Harddisk interleave I think is 2 or 3.
Addbuffers did not seem to affect this. This had 30.
All tests were run in non-interlaced mode with overscan of 664 X 222.
No background activity except Dmouse and Arexx.
File create/delete: create 12 files/sec, delete 47 files/sec
Directory scan: 106 entries/sec
Seek/read test: 86 seek/reads per second
r/w speed: buf 512 bytes, rd 67216 byte/sec, wr 24730 byte/sec
r/w speed: buf 4096 bytes, rd 93622 byte/sec, wr 79437 byte/sec
r/w speed: buf 8192 bytes, rd 113975 byte/sec, wr 90394 byte/sec
r/w speed: buf 32768 bytes, rd 137970 byte/sec, wr 100824 byte/sec
----------------------------------------------------------------------
This was done with a ST225N with low level format interleave of 0 and
fastmode set. Addbuffers 30.
File create/delete: create 12 files/sec, delete 43 files/sec
Directory scan: 106 entries/sec
Seek/read test: 60 seek/reads per second
r/w speed: buf 512 bytes, rd 42974 byte/sec, wr 27306 byte/sec
r/w speed: buf 4096 bytes, rd 54613 byte/sec, wr 28187 byte/sec
r/w speed: buf 8192 bytes, rd 54613 byte/sec, wr 28187 byte/sec
r/w speed: buf 32768 bytes, rd 54613 byte/sec, wr 27887 byte/sec
-----------------------------------------------------------------------
This was done with a ST225N and StarDrive controller running with a low
level formatted interleave of 2 using MDFIXER. An interleave of 1
means one sector follows another. Also addbuffers 30 and fastmode.
File create/delete: create 12 files/sec, delete 52 files/sec
Directory scan: 106 entries/sec
Seek/read test: 95 seek/reads per second
r/w speed: buf 512 bytes, rd 74898 byte/sec, wr 25954 byte/sec
r/w speed: buf 4096 bytes, rd 113975 byte/sec, wr 93622 byte/sec
r/w speed: buf 8192 bytes, rd 145635 byte/sec, wr 109226 byte/sec
r/w speed: buf 32768 bytes, rd 174762 byte/sec, wr 119156 byte/sec
-----------------------------------------------------------------------
This was done using a ST225N with pacific peripherals overdrive with a
MDFIXER interlace of 2 with no addbuffers except for 5 in the mountlist.
File create/delete: create 11 files/sec, delete 18 files/sec
Directory scan: 106 entries/sec
Seek/read test: 72 seek/reads per second
r/w speed: buf 512 bytes, rd 26214 byte/sec, wr 25954 byte/sec
r/w speed: buf 4096 bytes, rd 100824 byte/sec, wr 28187 byte/sec
r/w speed: buf 8192 bytes, rd 124830 byte/sec, wr 27887 byte/sec
r/w speed: buf 32768 bytes, rd 154202 byte/sec, wr 27594 byte/sec
-----------------------------------------------------------------------
This was done with a ST225N and overdrive with MDFIXER low level format
interlace of 2 and no addbuffers except 30 in mountlist.
File create/delete: create 11 files/sec, delete 22 files/sec
Directory scan: 106 entries/sec
Seek/read test: 74 seek/reads per second
r/w speed: buf 512 bytes, rd 27306 byte/sec, wr 25954 byte/sec
r/w speed: buf 4096 bytes, rd 113975 byte/sec, wr 27887 byte/sec
r/w speed: buf 8192 bytes, rd 145635 byte/sec, wr 27887 byte/sec
r/w speed: buf 32768 bytes, rd 187245 byte/sec, wr 27594 byte/sec
---------------------------------------------------------------------
This was done with a ST225N with overdrive and low level format
on overdrive disk with df0:devs/overdrive.drives modified for
225N to format with interleave of 3 in byte 4. It does not
have addbuffers but only the 5 in the mountlist. It used bufmemtype of 3.
Note that with an interleave of 2, the reads were sped up alittle but
writes really suffered, going to about 27Kb/sec
File create/delete: create 11 files/sec, delete 18 files/sec
Directory scan: 106 entries/sec
Seek/read test: 67 seek/reads per second
r/w speed: buf 512 bytes, rd 24966 byte/sec, wr 24730 byte/sec
r/w speed: buf 4096 bytes, rd 84562 byte/sec, wr 79437 byte/sec
r/w speed: buf 8192 bytes, rd 100824 byte/sec, wr 93622 byte/sec
r/w speed: buf 32768 bytes, rd 119156 byte/sec, wr 104857 byte/sec
-----------------------------------------------------------------------
This was done with 225N and overdrive and overdrive low level format
with interleave of 3 and 30 buffers and addbuffers 30.
File create/delete: create 12 files/sec, delete 38 files/sec
Directory scan: 106 entries/sec
Seek/read test: 71 seek/reads per second
r/w speed: buf 512 bytes, rd 25954 byte/sec, wr 24730 byte/sec
r/w speed: buf 4096 bytes, rd 97090 byte/sec, wr 81920 byte/sec
r/w speed: buf 8192 bytes, rd 119156 byte/sec, wr 93622 byte/sec
r/w speed: buf 32768 bytes, rd 137970 byte/sec, wr 104857 byte/sec
-----------------------------------------------------------------------
--
Walter Rothe at the UNIX(Tm) Connection, Dallas, Tx
UUCP: {rutgers}!smu.killer.aimania