On Aug 5, 2008, at 8:39 AM, Lin Jui-Nan Eric wrote:
Recently we found that we can only allocate 32GB for one swap slice. Does there is any sysctl oid or any kernel option to increase it? Why we have this restriction?
This size limitation likely predates the availability of disks larger than 32GB.
It's hard to conceive of why you'd want to add so much swap space, anyway-- if you've got programs which actually need to deal with 10s of gigabytes worth of data, then they ought to maintain a smaller/ reasonable-sized working set in RAM and do disk I/O as needed themselves rather than depend upon the VM pager, anyways.
(Well, when using a BSD-derived kernel, anyways. Some of the Mach kernels support userland VM pager implementations, so that things like a database or Photoshop can provide their own pager which understands their workload and chooses which pages to evict or replace better than the default system pager algorithm can.)
Regards, -- -Chuck _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
