Messages in this thread | | | From | "roland" <> | Subject | Re: I/O statistics per process | Date | Wed, 27 Sep 2006 23:22:02 +0200 |
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thanks. tried to contact redflag, but they don`t answer. maybe support is being on holiday.... !?
linux kernel hackers - there is really no standard way to watch i/o metrics (bytes read/written) at process level?
it`s extremly hard for the admin to track down, what process is hogging the disk - especially if there is more than one task consuming cpu.
meanwhile i found blktrace and read into the documenation. looks really cool and seems to be very powerful tool - but it it`s seems a little bit "oversized" and not the right tool for this. seems to be for tracing/debugging/analysis
what about http://lkml.org/lkml/2005/9/12/89 "with following patch, userspace processes/utilities will be able to access per process I/O statistics. for example, top like utilites can use this information" which has been posted to lkml one year ago ? any update on this ?
roland
----- Original Message ----- From: "Fengguang Wu" <fengguang.wu@gmail.com> To: "roland" <devzero@web.de> Cc: <linux-kernel@vger.kernel.org> Sent: Sunday, September 24, 2006 5:04 AM Subject: Re: I/O statistics per process
> On Fri, Sep 22, 2006 at 09:12:05PM +0200, roland wrote: >> is there a modified top/ps with i/o column, or is there yet missing >> something at the kernel level for getting that counters from ? > > Red Flag(http://www.redflag-linux.com/eindex.html) has developed an > iotop based on kprobes/systemtap. You can contact them if necessary.
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