On Wed, Mar 23, 2005 at 03:32:15PM +0100, Oliver Korpilla wrote:
Yeah, but slower??
Well at least very similar speeds seem not too unreasonable. I am not sure if the 64bit pointers would hurt the performance of gcc in any way. It does have to move more bytes around than a 32bit machine. it is certainly faster at many tasks.
I don't know if this problem wouldn't be handled by the bus architecture of the AMD64 itself. Remember it has also more regs and an integrated memory controller, that should actually give a boost.
I already do -j 3.
I wonder if 3 is overkill.
I did with it and without it - it's barely noticeable.
Well what does hdparm -t /dev/sda say your disk speed is able to do? What kind of HD and what size?
250GB Seagate SATA.
# hdparm -v /dev/sda
/dev/sda: IO_support = 0 (default 16-bit) readonly = 0 (off) readahead = 256 (on) geometry = 30401/255/63, sectors = 250059350016, start = 0
That doesn't say much interesting for sata drives. -t would have been more interesting.
hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 98 MB in 3.06 seconds = 32.01 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device
[EMAIL PROTECTED]:/home/korpo/download# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 98 MB in 3.01 seconds = 32.52 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device
[EMAIL PROTECTED]:/home/korpo/download# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 98 MB in 3.04 seconds = 32.26 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device
Thanks and with kind regards, Oliver Korpilla
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