Monitor Disk Usage (Unusual Load Avgs)
Hi, Server specs Dual p4 xeon 2.4 (4virtual cpus) 1gig ecc ram 5x 36gig 10k rpm scsi on a ami megaraid I only host a few web sites on this server which at the most peak hour of times there is only about 6-7%cpu usage. For some reason my load avg's will jump from 0.05 to 0.98 even to 1.50 when the cpu is only using 3%. I am thinking something is using the hard drive as I have load avg peaks of 6.0-7.0. I want to find out what is causing this as im curious to why they get so high. Does anyone know how to find out what running processes are using the harddrive or something like that?? Also how do I check if DMA mode is enabled, I know there is a hdparm in linux but I cant find anything like that for freebsd.. Thanks for you help Steve ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Monitor Disk Usage (Unusual Load Avgs)
Steven Adams wrote: Hi, Server specs Dual p4 xeon 2.4 (4virtual cpus) 1gig ecc ram 5x 36gig 10k rpm scsi on a ami megaraid I only host a few web sites on this server which at the most peak hour of times there is only about 6-7%cpu usage. For some reason my load avg's will jump from 0.05 to 0.98 even to 1.50 when the cpu is only using 3%. I am thinking something is using the hard drive as I have load avg peaks of 6.0-7.0. I want to find out what is causing this as im curious to why they get so high. Does anyone know how to find out what running processes are using the harddrive or something like that?? Also how do I check if DMA mode is enabled, I know there is a hdparm in linux but I cant find anything like that for freebsd.. Thanks for you help Steve As for that last, I'm sure there are probably several ways, but I'm a simpleton. Why not: % dmesg | grep DMA atapci0: SiS 962/963 UDMA133 controller port 0x4000-0x400f,0x374-0x377, 0x170-0x177,0x3f4-0x3f7,0x1f0-0x1f7 at device 2.5 on pci0 ad0: 38166MB ST340014A [77545/16/63] at ata0-master UDMA100 Hrmm, I need to see if my disk'll go faster ... ;-) Kevin Kinsey PS Incidentally, what's up with this? % finger [EMAIL PROTECTED] [freebsd.org] finger: drift: no such user I'm leaving that address in, just in case something's not quite right with finger(1)*, but whassup if it's *correct*?? (*which is entirely possible, I suppose) ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Monitor Disk Usage (Unusual Load Avgs)
Steve, There's the obligatory 'ps -ax' to see what's running. You can also run 'top' to get a constantly updated display of processes. Some other stuff you may want to look around with is 'systat' . Just running the command doesn't show a whole lot but with various options and such you can pull some useful info, check the man page. Something else is 'lsof' which lists open files and such, can help you get an idea of what's open and running. You can also run 'man -k stat' and find lots of other goodies. To find out what DMA mode is running, check your dmesg. 'dmesg | grep DMA' While I can't provide a specific answer to your questions I've pointed out some things that may help you find what you're looking for. Let us know what you find. --chip On Fri, 13 Aug 2004 23:00:19 +1000, Steven Adams [EMAIL PROTECTED] wrote: Hi, Server specs Dual p4 xeon 2.4 (4virtual cpus) 1gig ecc ram 5x 36gig 10k rpm scsi on a ami megaraid I only host a few web sites on this server which at the most peak hour of times there is only about 6-7%cpu usage. For some reason my load avg's will jump from 0.05 to 0.98 even to 1.50 when the cpu is only using 3%. I am thinking something is using the hard drive as I have load avg peaks of 6.0-7.0. I want to find out what is causing this as im curious to why they get so high. Does anyone know how to find out what running processes are using the harddrive or something like that?? Also how do I check if DMA mode is enabled, I know there is a hdparm in linux but I cant find anything like that for freebsd.. Thanks for you help Steve ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
