Re: latency on OSD

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Hi all,
I have installed ceph luminous, witch 5 nodes(45 OSD)

* 5 ceph-osd
  network: bond lacp 10GB
  RAM: 96GB
  HD: 9 disk SATA-3TB (bluestore)

I wanted to ask for help to fix the latency of the osd "ceph osd perf"

You who recommend me?


My config is:

/etc/ceph/ceph.conf

[global]
fsid = 414507dd-8a16-4548-86b7-906b0c9905e1
mon_initial_members = controller01,controller02,controller03
mon_host = 192.168.13.11,192.168.13.12,192.168.13.13
auth_cluster_required = cephx
auth_service_required = cephx
auth_client_required = cephx

public network = 192.168.13.0/24
cluster network = 192.168.10.0/24

osd_pool_default_pg_num = 1024
osd_pool_default_pgp_num = 1024
osd_pool_default_flag_hashpspool = true

[osd]
osd_scrub_begin_hour = 22
osd_scrub_end_hour = 6


---------------------------
ceph osd perf

osd commit_latency(ms) apply_latency(ms)
  0                 49                49
  1                120               120
  2                 36                36
  3                 65                65
  4                 19                19
  5                 57                57
  6                112               112
  7                 53                53
  8                159               159
  9                226               226
 10                 21                21
 11                 79                79
 12                 50                50
 13                133               133
 14                105               105
 15                 65                65
 16                 32                32
 17                 64                64
 18                 62                62
 19                 78                78
 20                 71                71
 21                 97                97
 22                168               168
 23                108               108
 24                119               119
 25                219               219
 26                144               144
 27                 26                26
 28                 76                76
 29                176               176
 30                 23                23
 31                 91                91
 32                 30                30
 33                 64                64
 34                 21                21
 35                 73                73
 36                124               124
 37                 85                85
 38                 39                39
 39                 36                36
 40                 27                27
 41                 33                33
 42                 49                49
 43                 22                22
 44                 44                44




--
With best regards,
  Vitaliy Filippov
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