3390 Vendor should not matter; these are on an EMC frame. What would bog Linux I/O to 3390s?
-- R; ----- Original Message ----- From: Dave Jones [EMAIL PROTECTED] Sent: 08/17/2006 12:24 PM To: [email protected] Subject: Re: I/O wait times -vs- Linux memory Rick, what kind of Linux i/o are you doing? To real 3390s? To SHARKs looking like a 3390? To some sort of SCSI attached disk? DJ Richard Troth wrote:
We're looking at some high I/O wait times for a certain database. One engineer has suggested that we add memory to Linux to speed things up. I don't see it. Does adding RAM to Linux help its I/O throughput? We've put a lot of effort into sizing our Linux guests (all hosted by z/VM 5.2) to that magical point between guest-level paging and excess guest memory use, so some of us resist the thought of adding real-to-Linux memory. I seems obvious that adding RAM would let any access method do more buffering, but we want to avoid some of that buffering because Linux gets carried away with it, correct? Thoughts? Thanks! -- R; ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
