I did not got that SSDs have read latency of 0.1ms.Since there is only one data file
I would expect the read of any key to take 0.1ms may be I am missing something
On Sun, Apr 3, 2011 at 9:21 AM, Anurag Gujral <firstname.lastname@example.org> wrote:
Hi All,I have loaded data into cassandra using batch processing the response times for reads are in the range of 0.8 ms but I am using SSDs. so I expect the read times to be even faster.
Does your working set fit in the memory? If so, SSD is not helpful to reduce the latency.
Every time I run compaction the latency numbers reduce to 0.3 to 0.4ms , is there a way I can run compaction once with some parametersso that i can get the same numbers 0.3 to 0.4 ms for reads.Please note that I am not loading the data again.ThanksAnurag