IDE TCQ #4
Quoted 10 lines · Jens Axboe
Quoted 7 lines
You can run a
IDENTIFY_DEVICEfrom user space with the task ioctls and look at word 83 -- bit 1 and 14 must be set for TCQ to be supported. If you give me the model identifier from the IBM drive, I can tell you if it has tcq or not...I'll write a small util to detect this tomorrow and send it to you + the list.
Duh, you can of course just look at
/proc/ide/ideX/hdY/identifyand parse that. The info above is still valid for that, of course :-)
If I parsed file correctly (it is 83 decimal word, yes?), WD's WDC WD1200JB-00CRA0 supports TCQ too. I'm still deciding which of TCQ #X and IDE #YY patches should be aplied to 2.5.8 to get optimal results (and I have to disconnect slaves...).
Best regards,
Petr Vandrovec [email protected]
Quoted 7 lines · Petr Vandrovec
Quoted 5 lines · Jens Axboe
Quoted 5 lines
You can run a
IDENTIFY_DEVICEfrom user space with the task ioctls and look at word 83 -- bit 1 and 14 must be set for TCQ to be supported. If you give me the model identifier from the IBM drive, I can tell you if it has tcq or not...
Quoted 8 lines
Quoted 5 lines
Quoted 2 lines
I'll write a small util to detect this tomorrow and send it to you + the list.
Duh, you can of course just look at
/proc/ide/ideX/hdY/identifyand parse that. The info above is still valid for that, of course :-)If I parsed file correctly (it is 83 decimal word, yes?), WD's WDC WD1200JB-00CRA0 supports TCQ too. I'm still deciding which of
Ok
Quoted 2 lines
TCQ #X and IDE #YY patches should be aplied to 2.5.8 to get optimal results (and I have to disconnect slaves...).
The latest I posted, and slaves are fine.
Signature · 1 line
Jens Axboe
Quoted 11 lines · Petr Vandrovec
Quoted 8 lines · Jens Axboe
Quoted 7 lines
You can run a
IDENTIFY_DEVICEfrom user space with the task ioctls and look at word 83 -- bit 1 and 14 must be set for TCQ to be supported. If you give me the model identifier from the IBM drive, I can tell you if it has tcq or not...I'll write a small util to detect this tomorrow and send it to you + the list.
Quoted 8 lines
Quoted 2 lines
Duh, you can of course just look at
/proc/ide/ideX/hdY/identifyand parse that. The info above is still valid for that, of course :-)If I parsed file correctly (it is 83 decimal word, yes?), WD's WDC WD1200JB-00CRA0 supports TCQ too. I'm still deciding which of TCQ #X and IDE #YY patches should be aplied to 2.5.8 to get optimal results (and I have to disconnect slaves...).
IDE 35 ist the latest from Jens with a fix for a wrong memset. So you should go for IDE 34, 35, since they apply on top of each other.