[OpenIndiana-discuss] SSD as a dedicated swap device

[Reginald Beardsley]

Gee guys,  I would have thought from my comment about interleaving swap on two disks in 4.x that it would be obvious that I understand it would be slower.  And in fact, know quite a bit about virtual memory implementations.  At the time, I tested interleaving 2 & 3 drives.  The improvement with 3 was negligible at best and if the drives were not identical it was slower.  But I got close to twice the paging speed on my 3/60 & 1+ using 2.

An SSD  should be faster than a regular hard drive.  I can justify $50-60 for a 128 GB SSD.  I can't justify buying that much ECC DRAM for a once in a blue moon compute job.  

Having been a witness to the conflicts over adding virtual memory to  Minix I find it ironic that the accepted practice now is to include virtual memory in the OS, but not use it.  For a long time everyone used BSD because it had virtual memory and Sys V did not.

Reg