Re:Slow performance on Hoary/Gutsy
- From: sktsee <sktsee@xxxxxxxxxxxxxxxx>
- Date: Mon, 5 May 2008 00:01:01 +0000 (UTC)
On Sun, 04 May 2008 21:45:03 +0200, Torbjörn Österdahl wrote:
There is a swap partition but the used flag is 0. I do not know if this
is normal.
Yes, it just means that your system has enough free memory and doesn't
need to swap out to disk.
Running hdparm -Tt resulted in a strange result when running it on
/dev/sda4, which is my '/' partition. This partition is about 30 Gig,
but hdparm still complains that it is to small. 'fdisk' lists it as a
'Extended' partition. I am not sure if this extended partition is
necessary(?).
That's normal. An extended partition isn't like a regular partition, but
rather is a "container" for logical partitions. I have an extended
partition on my drive and hdparm gave the same error message when running
timing tests on it.
swapon -s
Filename Type Size Used Priority
/dev/sda5 partition 1951856 0 -1
sudo fdisk -l
Disk /dev/sda: 120.0 GB, 120034123776 bytes 255 heads, 63 sectors/track,
14593 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk
identifier: 0x1ed81ed7
Device Boot Start End Blocks Id System
/dev/sda1 * 1 3649 29310561 83 Linux /dev/sda4
3650 14593 87907680 5 Extended /dev/sda5
3650 3892 1951866 82 Linux swap / Solaris
/dev/sda6 3893 14593 85955751 83 Linux
torost@media:~$ sudo hdparm -Tt /dev/sda1
/dev/sda1:
Timing cached reads: 724 MB in 2.00 seconds = 361.74 MB/sec Timing
buffered disk reads: 112 MB in 3.02 seconds = 37.09 MB/sec
torost@media:~$ sudo hdparm -Tt /dev/sda4
/dev/sda4:
read(2097152) returned 1024 bytes
Timing buffered disk reads: read() hit EOF - device too small
torost@media:~$ sudo hdparm -Tt /dev/sda6
/dev/sda6:
Timing cached reads: 678 MB in 2.00 seconds = 339.04 MB/sec Timing
buffered disk reads: 118 MB in 3.02 seconds = 39.04 MB/sec
torost@media:~$
sudo gpart /dev/sda
Begin scan...
Possible partition(Linux ext2), size(28623mb), offset(0mb) Possible
extended partition at offset(28623mb)
Possible partition(Linux swap), size(1906mb), offset(28623mb)
Possible partition(Linux ext2), size(83941mb), offset(30529mb)
End scan.
Checking partitions...
Partition(Linux ext2 filesystem): primary
Partition(Linux swap or Solaris/x86): logical Partition(Linux ext2
filesystem): logical
Ok.
Guessed primary partition table:
Primary partition(1)
type: 131(0x83)(Linux ext2 filesystem) size: 28623mb #s(58621120)
s(63-58621182) chs: (0/1/1)-(1023/254/63)d (0/1/1)-(3648/254/61)r
Primary partition(2)
type: 015(0x0F)(Extended DOS, LBA)
size: 85847mb #s(175815360) s(58621185-234436544) chs:
(1023/254/63)-(1023/254/63)d (3649/0/1)-(14592/254/63)r
Primary partition(3)
type: 000(0x00)(unused)
size: 0mb #s(0) s(0-0)
chs: (0/0/0)-(0/0/0)d (0/0/0)-(0/0/0)r
Primary partition(4)
type: 000(0x00)(unused)
size: 0mb #s(0) s(0-0)
chs: (0/0/0)-(0/0/0)d (0/0/0)-(0/0/0)r
The timing tests on your system beat mine, and my machine runs fine so
I'd say that disk performance probably isn't the source of sluggishness
on your system. You may still want try doing comparison timing tests with
the LiveCD's of Gutsy and Hardy. If there's no appreciable difference
between OS versions, then it becomes more likely then slowness is caused
by something else.
--
sktsee
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- References:
- Re:Slow performance on Hoary/Gutsy
- From: Anna EdwARds
- Re: Re:Slow performance on Hoary/Gutsy
- From: Torbjörn Österdahl
- Re: Re:Slow performance on Hoary/Gutsy
- From: sktsee
- Re: Re:Slow performance on Hoary/Gutsy
- From: Torbjörn Österdahl
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