…. To better understand response time ranges, we need to switch to synchronous IO and vary amount of threads. Throughput: And response times: We still see small hiccups in throughput and response times even for small amount of threads. For 8 threads the 95% response time is…

… still continue to run benchmarks of different SSD cards. This time I show numbers for Virident FlashMAX 1400. This is a… seen so far in my benchmarks. To see distribution of response time, the results for random read synchronous IO. There we can… in sync mode, and only 64 threads are getting close. Response time: In the conclusion, from all tested cards, Virident FlashMAX shows…

… per threads, throughput: Response time: Again, there is improvement in throughput, in both in quality and absolute value. For response time – in some cases…

…-64 threads. Throughput: Response time: For same cases (i.e. 4 threads) we see some interesting patterns. As for response time, actually it does…

… with normal performance the rest of time. The fact drops are relatively even all the time makes it more likely it is second case as having slowdown for longer interval of time would make dips very different depending on overlap with measurement… would be very interesting to plot the graph of 95% response time (which sysbench provides) for each of 10 second intervals too…

Peter, As I mention, I can’t provide response time graph for async IO, sysbench can’t measure time for each IO in async mode.

… thread for random read synchronous IO: There is also excellent response time characteristics. 0.25ms and 0.19ms for 8 threads, single…

Vadim, Do you have response time distribution for writes ? Also what Model/size of ioDrive is this ?

Vadim, I see you measured response time distribution for reads in sync mode but only Throughput every 10 seconds for random writes. Any reason for that ?