DOS ain't dead - Nothing you wrote is true. Cache matters a lot!

Nothing you wrote is true. Cache matters a lot! (Announce)

posted by lucho, 29.11.2007, 13:57

Nothing you wrote is true. Really nothing!
May I remind you what Jack wrote on Udo's forum?

== start quote ===

Finally, I leave it for all of you to try almost ANYTHING on your systems using a disk cache, or not. SATA disks rotate at 7200/10000 RPM and still have "rotational latencies", and their "high" transfer rate of 1.5 to 6 Gigabits/sec ARE NOT matched by a "net" bit-stream from the disk of about 240 Megabits/sec! Do your OWN tests, then decide for yourselves if Japheth's comments about not needing a cache are correct, or NOT!

=== end quote ===

As I've tested, the speed difference in using UDMA+cache and only UDMA is really enormous.

Thread locked

Complete thread:

preliminary Jemm v5.68 (includes XDMA32 with SATA support) - Japheth, 26.11.2007, 12:23 (Announce)
- preliminary Jemm v5.68 (includes XDMA32 with SATA support) - RayeR, 26.11.2007, 13:06
  - preliminary Jemm v5.68 (includes XDMA32 with SATA support) - Japheth, 26.11.2007, 14:01
    - preliminary Jemm v5.68 (includes XDMA32 with SATA support) - sol, 26.11.2007, 17:11
      - preliminary Jemm v5.68 (includes XDMA32 with SATA support) - Japheth, 26.11.2007, 18:39
        preliminary Jemm v5.68 (includes XDMA32 with SATA support) - Rugxulo, 26.11.2007, 18:51
        preliminary Jemm v5.68 (includes XDMA32 with SATA support) - jaybur, 26.11.2007, 21:09
    - preliminary Jemm v5.68 (includes XDMA32 with SATA support) - RayeR, 26.11.2007, 18:11
      - preliminary Jemm v5.68 (includes XDMA32 with SATA support) - Japheth, 26.11.2007, 18:21
        preliminary Jemm v5.68 (includes XDMA32 with SATA support) - RayeR, 26.11.2007, 21:25
        preliminary Jemm v5.68 (includes XDMA32 with SATA support) - Japheth, 26.11.2007, 22:08
        preliminary Jemm v5.68 (includes XDMA32 with SATA support) - RayeR, 27.11.2007, 00:10
        preliminary Jemm v5.68 (includes XDMA32 with SATA support) - Japheth, 27.11.2007, 08:20
        preliminary Jemm v5.68 (includes XDMA32 with SATA support) - RayeR, 27.11.2007, 11:42
        preliminary Jemm v5.68 (includes XDMA32 with SATA support) - Japheth, 27.11.2007, 16:08
        preliminary Jemm v5.68 (includes XDMA32 with SATA support) - RayeR, 28.11.2007, 00:08
        preliminary Jemm v5.68 (includes XDMA32 with SATA support) - RayeR, 28.11.2007, 02:02
        preliminary Jemm v5.68 (includes XDMA32 with SATA support) - Japheth, 28.11.2007, 23:04
- Licence conflict - lucho, 27.11.2007, 15:09
  - Licence conflict - Japheth, 27.11.2007, 15:57
    - Licence conflict - tom, 27.11.2007, 18:59
      - Licence conflict - lucho, 27.11.2007, 19:34
    - Licence conflict - lucho, 27.11.2007, 19:43
      - Licence conflict - Japheth, 27.11.2007, 19:56
        Licence conflict - lucho, 27.11.2007, 20:20
        Licence conflict - sol, 27.11.2007, 20:36
        Licence conflict - lucho, 27.11.2007, 21:08
        Licence conflict - sol, 27.11.2007, 21:15
        Licence conflict - lucho, 27.11.2007, 21:25
        Licence conflict - rr, 27.11.2007, 21:27
        Licence conflict - lucho, 27.11.2007, 21:30
        NO insult - Japheth, 28.11.2007, 10:20
        True names - lucho, 28.11.2007, 10:38
        NO insult - Steve, 28.11.2007, 12:39
        Licence conflict - tom, 27.11.2007, 20:59
        Licence conflict - sol, 27.11.2007, 21:03
        JLOAD source code - lucho, 28.11.2007, 09:55
        JLOAD source code - sol, 28.11.2007, 18:35
        JLOAD source code - lucho, 29.11.2007, 13:51
        JLOAD source code - Steve, 29.11.2007, 14:43
        JLOAD source code - Khusraw, 29.11.2007, 16:30
        JLOAD source code - sol, 29.11.2007, 18:02
        Grossly off-topic: Human nature or his nature?! - lucho, 29.11.2007, 20:30
        JLOAD source code - Khusraw, 29.11.2007, 21:10
        "Socialism" - Steve, 30.11.2007, 00:12
        "Socialism" - Khusraw, 30.11.2007, 08:58
        "Socialism" - Steve, 30.11.2007, 09:33
        "Socialism" - Khusraw, 30.11.2007, 10:28
        "Socialism" - Steve, 30.11.2007, 11:17
        "Socialism" - Khusraw, 30.11.2007, 14:34
        "Socialism" - Steve, 30.11.2007, 15:33
        You must be a deserter - lucho, 30.11.2007, 15:56
        You must be a deserter - Steve, 30.11.2007, 16:07
        You must be a deserter - lucho, 30.11.2007, 16:51
        You must be a deserter - Khusraw, 30.11.2007, 17:18
        You must be a deserter - Steve, 30.11.2007, 17:32
        You must be a deserter - sol, 30.11.2007, 17:37
        You must be a deserter - Khusraw, 30.11.2007, 18:33
        Successful socialism - lucho, 30.11.2007, 18:39
        Successful socialism - sol, 30.11.2007, 19:44
        You must be a deserter - Steve, 30.11.2007, 17:27
        You're Stepan from Russia! - lucho, 30.11.2007, 18:26
        "Socialism" - Khusraw, 30.11.2007, 17:09
        "Socialism" - Steve, 30.11.2007, 17:58
        JLOAD source code - sol, 29.11.2007, 18:11
        JLOAD source code - lucho, 29.11.2007, 20:39
        JLOAD source code - Matjaz, 29.11.2007, 21:07
        JLOAD source code - sol, 29.11.2007, 22:17
        Holy copyright - lucho, 30.11.2007, 14:32
        Finally a sunbeam of reason - Japheth, 30.11.2007, 10:47
        Finally a sunbeam of reason - Steve, 30.11.2007, 10:52
        Bumble bees in your heads - lucho, 30.11.2007, 15:31
        Bumble bees in your heads - Steve, 30.11.2007, 15:38
        Bumble bees in your heads, multi-barrel machine gun mouths - lucho, 30.11.2007, 15:44
        Bumble bees in your heads, multi-barrel machine gun mouths - Steve, 30.11.2007, 18:36
        Who's your gang's boss? - lucho, 30.11.2007, 15:28
        Licence conflict - Japheth, 28.11.2007, 10:29
  - Licence conflict - avoskov, 27.11.2007, 18:42
    - Licence conflict - lucho, 27.11.2007, 21:18
      - Licence conflict - jaybur, 27.11.2007, 23:21
        UIDE vs. XDMA32 & XCDROM32 - lucho, 28.11.2007, 09:28
        UIDE vs. XDMA32 & XCDROM32 - flox, 28.11.2007, 10:39
        Zorla güzellik olmaz - lucho, 28.11.2007, 10:49
        Yes and No - Japheth, 28.11.2007, 10:52
        Nothing you wrote is true. Cache matters a lot! - lucho, 29.11.2007, 13:57
        Must have been a torture ... - Japheth, 29.11.2007, 15:05
        Nothing you wrote is true. Cache matters a lot! - Steve, 29.11.2007, 15:35
        Nothing you wrote is true. Cache matters a lot! - Khusraw, 29.11.2007, 16:39
        Nothing you wrote is true. Cache matters a lot! - Steve, 29.11.2007, 23:43
        Nothing you wrote is true. Cache matters a lot! - Khusraw, 30.11.2007, 07:31
        Nothing you wrote is true. Cache matters a lot! - Steve, 30.11.2007, 08:48
        Nothing you wrote is true. Cache matters a lot! - Khusraw, 30.11.2007, 09:36
        Nothing you wrote is true. Cache matters a lot! - Steve, 30.11.2007, 09:49
        Nothing you wrote is true. Cache matters a lot! - Khusraw, 30.11.2007, 12:38
        Nothing you wrote is true. Cache matters a lot! - Steve, 30.11.2007, 13:20
        Nothing you wrote is true. Cache matters a lot! - lucho, 30.11.2007, 15:06
        Nothing you wrote is true. Cache matters a lot! - Steve, 30.11.2007, 16:00
        Cache vs. no cache test with UDMA - lucho, 30.11.2007, 16:55
        Cache vs. no cache test with UDMA - rr, 30.11.2007, 17:28
        Cache vs. no cache test with UDMA. Your links to IBIBLIO - lucho, 30.11.2007, 18:09
        .................. - Japheth, 30.11.2007, 19:34
        Cache vs. no cache test with UDMA. Your links to IBIBLIO - rr, 30.11.2007, 22:41
      - embargo counterstrikes - Japheth, 29.11.2007, 09:39
        Keep using LBACACHE - lucho, 30.11.2007, 15:21
- Someone owning a SATA CD-ROM/DVD? - Japheth, 30.11.2007, 16:34