[Bugs] [Bug 1370092] VERY poor replica write perfomance

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1370092



--- Comment #4 from Badalyan Vyacheslav <v.badalyan at open-bs.ru> ---
In RDMA Only mode:


Brick: intel2:/mnt/ram/b1
-------------------------
Cumulative Stats:
   Block Size:             131072b+
 No. of Reads:                    0
No. of Writes:                32768
 %-latency   Avg-latency   Min-Latency   Max-Latency   No. of calls         Fop
 ---------   -----------   -----------   -----------   ------------        ----
      0.00       0.00 us       0.00 us       0.00 us              8     RELEASE
      0.00       0.00 us       0.00 us       0.00 us              3  RELEASEDIR
      0.00       2.00 us       1.00 us       3.00 us              3     OPENDIR
      0.00      36.00 us      28.00 us      49.00 us              3      STATFS
      0.01      21.12 us      15.00 us      31.00 us              8       FLUSH
      0.01      29.44 us      10.00 us      68.00 us              9    GETXATTR
      0.02      59.75 us      50.00 us      73.00 us              8 REMOVEXATTR
      0.03     112.25 us      83.00 us     134.00 us              8        OPEN
      0.03      29.22 us      14.00 us      64.00 us             32    FINODELK
      0.04      95.69 us      53.00 us     135.00 us             13       FSTAT
      0.05      47.22 us      18.00 us     135.00 us             32     INODELK
      0.05     277.50 us      80.00 us     884.00 us              6     READDIR
      0.08     145.50 us     116.00 us     211.00 us             16     XATTROP
      0.12      90.38 us       7.00 us     200.00 us             39      LOOKUP
      0.28     108.29 us      37.00 us     452.00 us             78    FXATTROP
     17.60   66873.50 us   64404.00 us   70025.00 us              8    TRUNCATE
     81.69      75.79 us      56.00 us    1128.00 us          32768       WRITE

    Duration: 92 seconds
   Data Read: 0 bytes
Data Written: 4294967296 bytes

Interval 2 Stats:
   Block Size:             131072b+
 No. of Reads:                    0
No. of Writes:                16384
 %-latency   Avg-latency   Min-Latency   Max-Latency   No. of calls         Fop
 ---------   -----------   -----------   -----------   ------------        ----
      0.00       0.00 us       0.00 us       0.00 us              4     RELEASE
      0.00      17.25 us      15.00 us      19.00 us              4       FLUSH
      0.01      52.00 us      50.00 us      54.00 us              4 REMOVEXATTR
      0.02      28.75 us      20.00 us      57.00 us             12    FINODELK
      0.03     106.75 us      83.00 us     127.00 us              4        OPEN
      0.04      94.83 us      53.00 us     118.00 us              6       FSTAT
      0.04      37.69 us      18.00 us      67.00 us             16     INODELK
      0.06     118.75 us      67.00 us     173.00 us              8      LOOKUP
      0.07     133.88 us     116.00 us     150.00 us              8     XATTROP
      0.19      92.03 us      37.00 us     405.00 us             32    FXATTROP
     18.00   68204.50 us   66035.00 us   70025.00 us              4    TRUNCATE
     81.53      75.42 us      56.00 us     223.00 us          16384       WRITE

    Duration: 18 seconds
   Data Read: 0 bytes
Data Written: 2147483648 bytes

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