Try these settings on a 23 July 2012 or later HPO build:

FIOC_TARGET=1000000

FIOC_TRIM=1050000

FIOC_WARNING=1100000

DBRINDEX_CACHE=250000

MAX_OPEN_ARCHIVE_FILES=50

This assumes you have a 64-bit operating system with at least 1GB of unused RAM, which is usually the case on physical servers, but you may need to increase the RAM quota if you use a VM. You may also have to increase process open file quotas. The first search after you restart LISTSERV may still be slow, but from then on you should see a big improvement.

I think we got rid of our last non-VM production instance around two years ago, but you do have to be careful with the VM settings, and in particular the RAM, which we allocate generously in our production environment. I don’t mean that LISTSERV needs a huge amount of RAM, I just mean that one usually allocates RAM conservatively in virtual machines and with LISTSERV HPO this can have a big impact.

Eric

From: LISTSERV Site Administrators' Forum [mailto:[log in to unmask]] On Behalf Of Kern, Thomas (CONTR)
Sent: Friday, December 04, 2015 11:05
To: [log in to unmask]
Subject: Re: Advise on tuning please

I am the Listserv Admin from Dept. of Energy. I run our Listserv server in a Linux VM on VMWare. We are experiencing the same problem. Since I do not have that much of a customer workload on the server, I have set a cron event to recycle the Listserv process every 15 minutes.

Thomas Kern

ActioNet Inc

On contract to

U.S. Department of Energy

(301)903-2211 (Office)

(301)905-6427 (Mobile)

A sublety of Murphy's Law:

If it can go wrong, it already has,

and you just haven't realized it yet.

From: LISTSERV Site Administrators' Forum [mailto:[log in to unmask]] On Behalf Of Crum, Janice (NIH/CIT) [C]
Sent: Friday, December 04, 2015 7:45 AM
To: [log in to unmask]
Subject: [LSTSRV-L] Advise on tuning please

Hello,

I manage the ListServ for the NIH. Our ListServ server is running in a VMWare virtual environment. We have recently experienced extensive searches that have negatively impacted the ListSev service. The end result is users unable to authenticate to ListServ. A reboot quickly resolves the issue. Has anyone tackled this issue successfully? I was wondering if the tuning options would help but I was unable to find information on LSoft’s support site.

Any information and/or advice is greatly appreciated.

Thank you,

Janice Crum

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