Re: AW: Btrfs performance with small blocksize on SSD

2017-09-24 Thread Andrei Borzenkov
24.09.2017 16:53, Fuhrmann, Carsten пишет: > Hello, > > 1) > I used direct write (no page cache) but I didn't disable the Disk cache of > the HDD/SSD itself. In all tests I wrote 1GB and looked for the runtime of > that write process. So "latency" on your diagram means total time to write 1GiB

Re: AW: Btrfs performance with small blocksize on SSD

2017-09-24 Thread Qu Wenruo
On 2017年09月24日 21:53, Fuhrmann, Carsten wrote: Hello, 1) I used direct write (no page cache) but I didn't disable the Disk cache of the HDD/SSD itself. In all tests I wrote 1GB and looked for the runtime of that write process. Are you writing all the 1G into one file? Or into different