Re: System Performances
On 28.07.06 03:49, gustavo halperin wrote: > > By now I have the current 'hdparm' settings: -m16 -c3 -u1 -Xudma5 > Then the 'hdparm -Tt /dev/hda' show the next results: >/dev/hda: >Timing cached reads: 1376 MB in 2.00 seconds = 686.58 MB/sec >Timing buffered disk reads: 50 MB in 3.02 seconds = 16.53 MB/sec > But if the configuration is '-m0 -c0 -u0 ' the result from 'hdparm -Tt' > is the same, so there are any way to improve this Timings ?? If your system uses DMA, those settings are not used. What kind of disk is that? If that's older type of hdd, it's quite fast. If it's new one, do you have connected it using 80pin cable? -- Matus UHLAR - fantomas, [EMAIL PROTECTED] ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. How does cat play with mouse? cat /dev/mouse -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: System Performances
gustavo halperin wrote: > > By now I have the current 'hdparm' settings: -m16 -c3 -u1 -Xudma5 > Then the 'hdparm -Tt /dev/hda' show the next results: >/dev/hda: >Timing cached reads: 1376 MB in 2.00 seconds = 686.58 MB/sec >Timing buffered disk reads: 50 MB in 3.02 seconds = 16.53 MB/sec On my Linux desktop I only get (with "hdparm -a 32 -c 3 -d 1 -m 16 -u 1 /dev/hda":) /dev/hda: Timing cached reads: 328 MB in 2.01 seconds = 162.83 MB/sec Timing buffered disk reads: 60 MB in 3.05 seconds = 19.66 MB/sec :-( That said, it still does the job. Best regards, -- George Borisov DXSolutions Ltd signature.asc Description: OpenPGP digital signature
Re: System Performances
gustavo halperin([EMAIL PROTECTED]) is reported to have said: > Hello I have some questions about system performances. > > By now I have the current 'hdparm' settings: -m16 -c3 -u1 -Xudma5 > Then the 'hdparm -Tt /dev/hda' show the next results: >/dev/hda: >Timing cached reads: 1376 MB in 2.00 seconds = 686.58 MB/sec >Timing buffered disk reads: 50 MB in 3.02 seconds = 16.53 MB/sec > But if the configuration is '-m0 -c0 -u0 ' the result from 'hdparm -Tt' > is the same, so there are any way to improve this Timings ?? > > Second If I set with 'hdparm' the settings '-S 12' and '-y' always after > few minutes the drive state back to 'active/idle', that is OK. > > Last, the configurations of the "performance-settings Linux VM" > (/proc/sys/vm/) and the "system wide limit for file handles" > (/proc/sys/fs/file_max) can improve system behave ? How can I know what > are the best configurations ?? > It seem that you have the hdparm package installed but not the hwtools package. If you install it you can set up /etc/init.d/hwtools to retain the hdparm settings. Like if command -v hdparm >/dev/null 2>&1; then hdparm -q -m32 -a266 -A1 -c3 -d1 -u1 -W0 -S242 /dev/hda hdparm -q -m16 -a256 -A1 -c3 -d1 -u1 -W0 -S220 /dev/hdb hdparm -q -d1 /dev/hdc true fi echo " hdparm" Hope this is what you were looking for. WT -- It is practically impossible to teach good programming style to students that have had prior exposure to BASIC: as potential programmers they are mentally mutilated beyond hope of regeneration. -- Dijkstra ___ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: System Performances
gustavo halperin wrote: Hello I have some questions about system performances. By now I have the current 'hdparm' settings: -m16 -c3 -u1 -Xudma5 Then the 'hdparm -Tt /dev/hda' show the next results: /dev/hda: Timing cached reads: 1376 MB in 2.00 seconds = 686.58 MB/sec Timing buffered disk reads: 50 MB in 3.02 seconds = 16.53 MB/sec But if the configuration is '-m0 -c0 -u0 ' the result from 'hdparm -Tt' is the same, so there are any way to improve this Timings ?? Second If I set with 'hdparm' the settings '-S 12' and '-y' always after few minutes the drive state back to 'active/idle', that is OK. Last, the configurations of the "performance-settings Linux VM" (/proc/sys/vm/) and the "system wide limit for file handles" (/proc/sys/fs/file_max) can improve system behave ? How can I know what are the best configurations ?? Thank you, Gustavo Did u open DMA? I get Timing cached reads: 440 MB in 2.01 seconds = 219.40 MB/sec Timing buffered disk reads: 82 MB in 3.05 seconds = 26.89 MB/sec in my old disk. My momery is jsut 256M so cached read looks bad. But buffered read is OK. & this is my param. hdparm -v /dev/hdb /dev/hdb: multcount= 16 (on) IO_support = 1 (32-bit) unmaskirq= 0 (off) using_dma= 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead= 256 (on) geometry = 65535/16/63, sectors = 78165360, start = 0 BTW, check u cable is really UATA100 or later, do not just connect by a CDROM cable which just can provide 33M/s as max. -- 与其相濡以沫，不如相忘于江湖 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
