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An Intel Optane NVME SSD. <10µs latency for both reads and writes even at low queue depths. There are newer NVME SSDs with more IOPS, but only at high queue dep
by db48x 5y ago
An Intel Optane NVME SSD. <10µs latency for both reads and writes even at low queue depths. There are newer NVME SSDs with more IOPS, but only at high queue depths, and their latency is a lot worse. If you put your swap on your Optane drive, you can use hundreds of gigs of swap without making your machine unresponsive. Makes a great place to put a database too.
Check out this screenshot http://db48x.net/temp/Screenshot%20from%202019-12-09%2013-27-07.png http://db48x.net/temp/Screenshot%20from%202019-12-09%2013-27...
See where it says “avio 3.53µs” and “avq 0.61”? That’s 284,000 IOPS even with nothing queued up. With any other drive you would be lucky to get a tenth of that at QD1. Even better, this is a mixed read and write workload; most drives are fastest when you are only reading or only writing.
- timando 5y agoIntel discontinued Optane for consumers.
- awiesenhofer 5y agoYou can get the enterprise ones used on ebay
- ncmncm 5y agoI had an Intel nVME SSD. It failed catastrophically after only a year. I posted about it, and somebody from Intel said, not surprising, that model was crap. Apparently the only products Intel goes to any effort to make reliable are the ones meant for data centers. So, no more Intel for me.
- randomopining 5y agoHow does this compare to a Hynix p31 gold nvme?
- db48x 5y agoProbably very favorably. I’ve never used that particular SSD, but if you have one you could measure the latency and IOPS under a similar work load and find out for sure.
- ajolly 5y agoI second this. Love my optane.