знаю знаю но в моих тестат read сильно отстает, к примеру
tiotest -t 1 -f 9000 -r 15000 -b 4096############################### /ext4 ###############################
Tiotest results for 1 concurrent io threads:
,----------------------------------------------------------------------.
| Item | Time | Rate | Usr CPU | Sys CPU |
+-----------------------+----------+--------------+----------+---------+
| Write 9000 MBs | 232.4 s | 38.728 MB/s | 0.6 % | 13.9 % |
| Random Write 59 MBs | 43.4 s | 1.349 MB/s | 0.0 % | 1.1 % |
| Read 9000 MBs | 220.0 s | 40.910 MB/s | 0.5 % | 7.3 % |
| Random Read 59 MBs | 121.5 s | 0.482 MB/s | 0.0 % | 0.8 % |
`----------------------------------------------------------------------'
Tiotest latency results:
,-------------------------------------------------------------------------.
| Item | Average latency | Maximum latency | % >2 sec | % >10 sec |
+--------------+-----------------+-----------------+----------+-----------+
| Write | 0.097 ms | 3160.168 ms | 0.00004 | 0.00000 |
| Random Write | 0.014 ms | 1.179 ms | 0.00000 | 0.00000 |
| Read | 0.095 ms | 355.041 ms | 0.00000 | 0.00000 |
| Random Read | 8.099 ms | 198.558 ms | 0.00000 | 0.00000 |
|--------------+-----------------+-----------------+----------+-----------|
| Total | 0.121 ms | 3160.168 ms | 0.00002 | 0.00000 |
`--------------+-----------------+-----------------+----------+-----------'
############################### /btrfs ###############################
Tiotest results for 1 concurrent io threads:
,----------------------------------------------------------------------.
| Item | Time | Rate | Usr CPU | Sys CPU |
+-----------------------+----------+--------------+----------+---------+
| Write 9000 MBs | 355.2 s | 25.340 MB/s | 0.3 % | 20.7 % |
| Random Write 59 MBs | 24.0 s | 2.439 MB/s | 0.1 % | 90.0 % |
| Read 9000 MBs | 191.0 s | 47.121 MB/s | 0.5 % | 12.1 % |
| Random Read 59 MBs | 124.5 s | 0.471 MB/s | 0.0 % | 1.0 % |
`----------------------------------------------------------------------'
Tiotest latency results:
,-------------------------------------------------------------------------.
| Item | Average latency | Maximum latency | % >2 sec | % >10 sec |
+--------------+-----------------+-----------------+----------+-----------+
| Write | 0.139 ms | 12096.521 ms | 0.00022 | 0.00004 |
| Random Write | 0.021 ms | 0.337 ms | 0.00000 | 0.00000 |
| Read | 0.082 ms | 218.431 ms | 0.00000 | 0.00000 |
| Random Read | 8.297 ms | 223.040 ms | 0.00000 | 0.00000 |
|--------------+-----------------+-----------------+----------+-----------|
| Total | 0.137 ms | 12096.521 ms | 0.00011 | 0.00002 |
`--------------+-----------------+-----------------+----------+-----------'
############################### /nilfs2 ###############################
Tiotest results for 1 concurrent io threads:
,----------------------------------------------------------------------.
| Item | Time | Rate | Usr CPU | Sys CPU |
+-----------------------+----------+--------------+----------+---------+
| Write 9000 MBs | 300.9 s | 29.909 MB/s | 0.4 % | 16.6 % |
| Random Write 59 MBs | 83.0 s | 0.706 MB/s | 0.0 % | 1.0 % |
| Read 9000 MBs | 523.7 s | 17.186 MB/s | 0.2 % | 5.6 % |
| Random Read 59 MBs | 386.0 s | 0.152 MB/s | 0.0 % | 0.3 % |
`----------------------------------------------------------------------'
Tiotest latency results:
,-------------------------------------------------------------------------.
| Item | Average latency | Maximum latency | % >2 sec | % >10 sec |
+--------------+-----------------+-----------------+----------+-----------+
| Write | 0.130 ms | 2861.870 ms | 0.00004 | 0.00000 |
| Random Write | 5.444 ms | 746.177 ms | 0.00000 | 0.00000 |
| Read | 0.227 ms | 240.789 ms | 0.00000 | 0.00000 |
| Random Read | 25.730 ms | 352.162 ms | 0.00000 | 0.00000 |
|--------------+-----------------+-----------------+----------+-----------|
| Total | 0.278 ms | 2861.870 ms | 0.00002 | 0.00000 |
`--------------+-----------------+-----------------+----------+-----------'
