Hi, Am 07.01.2013 19:32, schrieb Sander Jansen: > So does it really make a big difference? No, it doesn't. Take a look at [1] for instance and see for yourself. As already said the kernel (including the IO scheduler) by now is absolutely capable of detecting whether or not the attached device(s) are "rotational" or not and act appropriately. In general there is not much you have to do, although there might be workloads where the defaults are not good enough. However this is also true for classical rotational media. [1] http://www.velobit.com/storage-performance-blog/bid/126135/Effects-Of-Linux-IO-Scheduler-On-SSD-Performance Best regards, Karol Babioch
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