[Mapserver-users] Deleting old GIF image files
Antti.Roppola at brs.gov.au
Antti.Roppola at brs.gov.au
Tue Jun 24 21:56:36 PDT 2003
Point taken re: absolute numbers versus date based culling.
Thorsten wrote:
> Apart from that, I do not know if the comparison is an expensive
> operation or not; if it is, I would rather have it run once on a bigger
> bunch of files (cron job) than repeatedly on a smaller number (the
> 'embedded' solution), especially on a system that is already busy
> producing maps.
I'd guess inexpensive compared with the time taken to read and
render GIS data and that PHP is being called as a CGI. You'd
be reading inodes, but not data. Easy enough to test.
And less content in a directory *may* reduce the time taken to
locate and load a rendered image into a page. This is assuming
that a request will need to read "." (dot) to figure out which
inode it needs to read from. I tested it and it didn't make more
than a second of difference.
Antti
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