/tmp has thousands of files

2007-12-25 9:31:00

The original question is below. I've received responses from no effect at

all, to a dramatic effect since whenever something has to write a new file

to /tmp it needs to go through the long list (basically a sequential file in

memory) to find the next open inode, etc. So it could certainly effect

performance. Basically I'm going to make sure the script runs nightly and

clears out anything older than 24 hours that match the criteria of that

application's temp files.

Many thanks go to:

Rodney Wines

Roger Fujii

Matthew Stier

Danny Johnson

Ray Delaney

Hope I didn't forget anybody.

Thanks again!

Damon

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Sun Managers:

We have a Sun Ultra-Enterprise 6000 w/ 1.25GB memory running Solaris 2.5.1

with recommended patch cluster from last month. Swap is currently at 2.0GB

as the ERP package BaaN recommends (at least 50% above physical memory).

The ERP package can create up to a few thousand entries a day in /tmp that

are 2-byte temp files, but it doesn't erase them when it's finished. My

question is: Does this affect the performance of the system? I don't see

any swapping at all, a little paging here and there but there only little

blips in perfmeter - I can only imagine that it's the file system cache

releasing that memory that causes the little blip. Obviously over time

thousands of files at 2bytes each could take up space, like right now we

have about 6500 files in tmp.

My plan is to run a cron script every night that will clear out all files

beginning with the regular naming scheme of those tmp files that are 2 bytes

long and at least 3 days old. I'm not sure if I will gain anything but a

cleaner directory, though that's always a good thing in itself.

Thanks for any information

Damon

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