Fixing asynchronous I/O, again

Posted Jan 22, 2016 11:04 UTC (Fri) by intgr (subscriber, #39733)
In reply to: Fixing asynchronous I/O, again by liam
Parent article: Fixing asynchronous I/O, again

> there's no technology on the horizon claiming to improve iops by an order of magnitude

Hard to say for sure how realistic these figures are, as no products are on the market yet, but 3D XPoint *claims* be that technology. The numbers from a few news articles claim close to one order of magnitude improvement in IOPS compared to plain old flash memory, for the first generation of products.

> In an NVMe-based solid state drive, XPoint chips can deliver more than 95,000 I/O operations per second at a 9 microsecond latency, compared to 13,400 IOPs and 73 ms latency for flash

http://www.eetimes.com/document.asp?doc_id=1328682
http://hothardware.com/news/intel-and-micron-jointly-drop...

Fixing asynchronous I/O, again

Posted Jan 22, 2016 22:40 UTC (Fri) by liam (guest, #84133) [Link]

I guess the irony didn't make it through the adc:)
X point is exactly what i had in mind, and why it makes sense to tackle this issue properly sooner rather than later.
That proper aio keeps coming up should be an additional reason to take this seriously. It's not as though the other major kernels are missing this feature.