Messages in this thread | | | Date | Wed, 17 Feb 1999 20:49:00 +0100 (CET) | From | Jelle Foks <> | Subject | Re: Disk statistics tool for Linux ? |
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On Tue, 16 Feb 1999, Francois Desarmenien wrote:
> In a recent threat on linux-kernel, I read something like there wasn't anything > like sar or vmstat tools. > > While should be doable using the /proc filesystem, I'm wondering about disk > activity statistics: > > Using big database like Oracle requires a very fine tuning of disk activity, like > CPU wait I/O, disk percent I/O busy, I/O thoughtput on so on. > > Do you think it can be done with Linux, as I'm planning to migrate some rather > big databases (some table with roughly 10^7 rows) from SCO to Linux, but I really > need those tools to administrate the databases correctly. > > Ineed the rest of the tools, of course, is really needed too, as it is very important > to to have pertinent snapshots of both Oracle statistics and OS statistics at the same time... > > Thank you for reading me > > Fran=E7ois D=E9sarm=E9nien
I suggest you take a look at the tools 'procinfo' and 'vmstat', both extract the kernel information from the /proc filesystem and present it in a human-readable form.
I personally like to use procinfo as: 'procinfo -D -n1'
For hard drive performance tuning, I suggest using 'hdparm' as well. And if you plan to use IDE drives, make sure they and your motherboard chipset is detected as UDMA-capable.
I also suggest that you take a look ad the mdutils and raidutils for creating a fast software raid array. Stay away from software raid5 if you want performance (find another way to get data security then (two radi0 arrays?)). I've seen a 40GB raid0 array of four 7200RPM Maxtor UDMA drives do about 30Mbytes/sec (2GB bonnie test) on a Celeron333/IntelBX(Asus) system.
Cya, Jelle
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