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tromcho.net/lp
Vitaliy Filippov de6919b02b Add option to disable multiple overwrites of the same journal sector
This makes sense for some SSDs like Intel D3-4510 because they don't
like overwrites of the same sector:

$ fio -direct=1 -rw=write -bs=4k -size=4k -loops=100000 -iodepth=1
  write: IOPS=3142, BW=12.3MiB/s (12.9MB/s)(97.9MiB/7977msec)

$ fio -direct=1 -rw=write -bs=4k -size=128k -loops=100000 -iodepth=1
  write: IOPS=20.8k, BW=81.4MiB/s (85.3MB/s)(543MiB/6675msec)
2020-09-13 00:37:39 +03:00
..
2020-09-11 18:49:07 +03:00
2020-08-03 23:50:59 +03:00
2020-09-11 17:49:44 +03:00