But swap space isn't really memory, it's disk and nowhere near as fast as memory, and (I don't know for sure) probably even far slower than SSD's.
In reality, if your creating a tempfs partition for the speed of memory vs disk, then using swap space defeats the purpose. George Gallen Senior Programmer/Analyst Accounting/Data Division [email protected] ph:856.848.9005 Ext 220 The Wyanoke Group http://www.wyanokegroup.com ________________________________________ From: [email protected] [[email protected]] On Behalf Of Wols Lists [[email protected]] Sent: Thursday, August 25, 2011 7:28 PM To: [email protected] Subject: Re: [U2] Why Pick U2? On 25/08/11 16:47, George Gallen wrote: > keep in mind: > > SSD drives have a limited number of writes (much better today than before) > tempfs do not (or at least I don't think so) > SSD drives however usually can store a LOT more than a tempfs file, which > depends on your physical memory - You couldn't create a 100GB tempfs > if you wanted to Completely wrong ... :-) My /tmp dir happens to be 8Gb in size - on a system with 8Gb of ram. I *also* have a 20Gb /var/tmp/portage. Both of these are tmpfs systems, so I have 28Gb of tmpfs on a system with only 8Gb of ram :-) That said, you must have sufficient total memory - I've got something in excess of 40Gb of total address space. I'm not sure how big my swap partitions are, but there's more than 32Gb (my rule is at least twice the mobo's max ram capacity, and with 1.5Tb of disk space, that's peanuts :-) But ram disks do default to half available ram, and that burnt me when I first hit it... > SSD drives don't forget when you reboot > But that's the whole point of ram disks :-) Cheers, Wol _______________________________________________ U2-Users mailing list [email protected] http://listserver.u2ug.org/mailman/listinfo/u2-users _______________________________________________ U2-Users mailing list [email protected] http://listserver.u2ug.org/mailman/listinfo/u2-users
