in reply to Re^2: Managing System Memory Resources
in thread Managing System Memory Resources

Solaris 2.8 behaves nicely when swapping. ... It does not swap out processes if it runs out of memory for I/O. Solaris 2.7, however, is not so nice.

One approach to consider, if you're willing to support multiple strategies, is to make the decision to do file processing in-memory dependent on OS version.

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Re^4: Managing System Memory Resources
by Sandy (Curate) on Jun 28, 2004 at 17:13 UTC
    Now that I have a handle on the problem (i.e. it's an OS issue, not a perl issue), I will certainly have to consider the various options. The low memory Solaris 2.7 was supposed to be a backup to the higher end machine. Increasing the memory on the 2.7 machine, or upgrading to 2.8, or both, will most likely be our final solution.