Preliminary review: Adding tracing of I/O calls (original) (raw)

Aleksey Shipilev aleksey.shipilev at oracle.com
Wed Nov 7 14:04:00 UTC 2012


On 11/07/2012 07:55 AM, Staffan Larsen wrote:

An update on performance. I have written microbenchmarks for file and socket i/o and compared the results before my suggested changes and after.

FileChannelRead -4.06% FileChannelWrite -1.06% FileInputStream 0.92% FileOutputStream 1.32% RandomAccessFileRead 1.66% RandomAccessFileWrite 0.76% SocketChannelReadWrite 0.75% SocketReadWrite 0.89%

Good. I think next time you better publish the mean values along with the errors to actually see if the difference is significant or not.

-Aleksey.



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