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- Newsgroups: comp.unix.aix
- Subject: Re: /usr performance for 220's
- Message-ID: <Bzox55.JMH@cantua.canterbury.ac.nz>
- From: davis@chem.canterbury.ac.nz (John Davis)
- Date: Wed, 23 Dec 1992 02:19:53 GMT
- Reply-To: davis@chem.canterbury.ac.nz
- References: <1992Dec22.221251.28368@cc.gatech.edu>
- Organization: Chem Dept, Uni of Canty, Chch, New Zealand
- Nntp-Posting-Host: chemrs1.canterbury.ac.nz
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-
- Mike JD Espig (jd@cc.gatech.edu) wrote:
- > I just finished installing a new IBM 220 as a /usr client. The only
- > problem is that the performance is terrible! I remember a thread about
- > this recently and was wondering if any solutions were posted.
-
- I've found that the default size transmit and receive queues pretty
- much throttles NFS performance (like 50K/s max read rate). Upping them
- to their max (default is 30 for both, max is 150 ) helps a lot - doing
- that we got more like 500K/s max read speed, but write speed is still
- a very low 150K/s. What's odd is that this _wasn't_ happening
- under 3.1.6, we had the default size queues and we were getting
- MUCH higher throughput ( 800K/s on read, 600K/s on writes).
-
- me thinks something is broken....
-
- --
- -----------------------------------------------------------------------------
- | o John Davis davis@chem.canterbury.ac.nz phone NZ+3642-421 o |
- | o (Depart)mental Programmer,Chem Dept, Univ of Canterbury, Chch, NZ o |
- | o "I do not fear computers, I fear the lack of them" - Isaac Asimov o |
-