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Saturday, February 6 • 15:40 - 16:20
Qemu Disk I/O: Which performs better, Native or Threads?

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Qemu can use two different methods to submit disk I/O requests. The default method, "io=threads", uses a thread pool to submit these requests synchronously, while the alternate method, "io=native", uses a single thread to submit these requests asynchronously. We were curious if the default method provided the best overall throughput, so we tested both under a wide array of storage configurations. This included the use of solid state and rotational disks, different host filesystems, and even using a network file system. This paper consists of our analysis results, challenges and improvements.

Speakers
avatar for Pradeep Surisetty

Pradeep Surisetty

Engineering Manager in Performance Engineering team, Red Hat, Red Hat
https://in.linkedin.com/in/pradeep-kumar-surisetty-32135418


Saturday February 6, 2016 15:40 - 16:20
c. D0207 (90 places)