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redo86
n00b
Joined: 29 Nov 2008
Posts: 43
Location: Pisa
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 Posted: Fri Dec 05, 2008 2:18 pm Post subject: Gentoo slow |
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Hello forum i've installed gentoo but i've a problem, the first time that i lunch a program ( firefox or amarok or medit etc...) my laptpo need a lot of time, after if i re-lunch the same program it's very fast; it can be libraries fault? If so, can i autorun the most important ? otherwise ho can i resolve??
p.s.
i've already re-emerge gtk pango and glib and etc-update
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NeddySeagoon
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Joined: 05 Jul 2003
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| Posted: Fri Dec 05, 2008 2:38 pm Post subject: |
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redo86,
Maybe you have DMA off for your hard drive ?
What does show?
If DMA is off, please post the output of lspci, so we can help you fix it.
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redo86
n00b
Joined: 29 Nov 2008
Posts: 43
Location: Pisa
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| Posted: Fri Dec 05, 2008 4:03 pm Post subject: |
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dma is off  this is the output of lspci
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00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 01)
00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 4 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 01)
02:06.0 CardBus bridge: Texas Instruments PCIxx12 Cardbus Controller
02:06.1 FireWire (IEEE 1394): Texas Instruments PCIxx12 OHCI Compliant IEEE 1394 Host Controller
02:0e.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
10:00.0 Network controller: Broadcom Corporation BCM94311MCG wlan mini-PCI (rev 01)
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mgrela
Tux's lil' helper
Joined: 26 Jul 2008
Posts: 123
Location: Polska
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| Posted: Fri Dec 05, 2008 6:17 pm Post subject: |
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If you have a SATA hdd check in the BIOS if the controller is not working in IDE compatibility mode. IIRC on Intel it has serious performance issues and shouldn't be used. You should be using AHCI. Remember, that for AHCI to work you need to enable support for it in the kernel or yout kernel will panic. Also it would be helpful if you posted the output of immidiately after bootup. Another thing which you can do is to execute this command:
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hdparm -t <harddisk_device>
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It will measure the data transfer speed for your HDD. Compare it to the drive specifications (maybe look for some benchmarks of the drive). This way you can make sure if the HDD is causing the slowness.
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NeddySeagoon
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| Posted: Fri Dec 05, 2008 6:49 pm Post subject: |
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redo86,
Check your kernel settings are like this
Be aware that this will make all your drives appear as SCSI devices, with names like /dev/sda, even if they are really PATA devices.
You may need to change /etc/fstab and grub.conf. Details are in the link.
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NeddySeagoon
Computer users fall into two groups:-
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redo86
n00b
Joined: 29 Nov 2008
Posts: 43
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| Posted: Sun Dec 07, 2008 7:09 pm Post subject: |
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ok i've read the howto and i've done all, i see also that option sata in the bios was disabled, so i 've enabled, but the program are still slow th first time :S; however this command hdparm -t /dev/sda1 return this result:
/dev/sda1:
Timing buffered disk reads: 128 MB in 3.04 seconds = 42.05 MB/sec
but means:P?
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Genone
Retired Dev
Joined: 14 Mar 2003
Posts: 9538
Location: beyond the rim
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| Posted: Sun Dec 07, 2008 8:40 pm Post subject: |
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| redo86 wrote: | | but the program are still slow th first time :S; |
How slow is "slow"? It's normal that programs take longer when they're started the first time, on later starts the relevant files are already in the filesystem cache so don't have to be read from disk again.
Last edited by Genone on Mon Dec 08, 2008 5:55 am; edited 1 time in total |
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d2_racing
Bodhisattva
Joined: 25 Apr 2005
Posts: 13047
Location: Ste-Foy,Canada
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| Posted: Mon Dec 08, 2008 1:28 am Post subject: |
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42.05 is pretty good for a laptop.
Just to compare, on my desktop I have this :
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gentootux ~ # hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 14086 MB in 2.00 seconds = 7053.15 MB/sec
Timing buffered disk reads: 328 MB in 3.02 seconds = 108.66 MB/sec
gentootux ~ #
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redo86
n00b
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| Posted: Mon Dec 08, 2008 4:45 pm Post subject: |
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mm undestand=) but now i remeber why i've disabled sata option in the bios...because windows, i don't know why, but start only if the option is off :S, so i must disabled , but i've an idea: i can look the kernel when i use ubuntu and set my kernel (because with ubuntu, the sofwtare was more fast then now using gentoo :S)...it's bad or good idea? then after i use hdparm options...is good idea?
edit: ok i've tried but kernel is almost all turned on :S how can i do??
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NeddySeagoon
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| Posted: Mon Dec 08, 2008 6:54 pm Post subject: |
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redo86,
Windows wants to use the AHCI driver in BIOS SATA mode but its not shipped with windows.
Set IDE mode in the BIOS, boot into windows and install the AHCI update.
Go into the BIOS, set SATA mode and both Windows and Linux should work
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NeddySeagoon
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redo86
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| Posted: Mon Dec 08, 2008 7:13 pm Post subject: |
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thank you very much  i try
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