Тест скорости до и после перевода на софтовый RAID 1

Скорость Диска (Чтения/Записи): Тест HDD, SSD в Linux

postgres@test2:/tmp/1ctmp$ pgbench -c 10 -j 10 -t 10000 example
starting vacuum...end.
transaction type: <builtin: TPC-B (sort of)>
scaling factor: 500
query mode: simple
number of clients: 10
number of threads: 10
number of transactions per client: 10000
number of transactions actually processed: 100000/100000
latency average = 1.098 ms
tps = 9110.339653 (including connections establishing)
tps = 9115.198358 (excluding connections establishing)
postgres@test2:/tmp/1ctmp$ pgbench -c 10 -j 10 -t 10000 example
starting vacuum...end.
transaction type: <builtin: TPC-B (sort of)>
scaling factor: 500
query mode: simple
number of clients: 10
number of threads: 10
number of transactions per client: 10000
number of transactions actually processed: 100000/100000
latency average = 1.367 ms
tps = 7315.559556 (including connections establishing)
tps = 7318.867888 (excluding connections establishing)
postgres@test2:/tmp/1ctmp$ pgbench -c 10 -j 10 -t 10000 example
starting vacuum...end.
transaction type: <builtin: TPC-B (sort of)>
scaling factor: 500
query mode: simple
number of clients: 10
number of threads: 10
number of transactions per client: 10000
number of transactions actually processed: 100000/100000
latency average = 1.303 ms
tps = 7672.292085 (including connections establishing)
tps = 7675.608184 (excluding connections establishing)

user@test2:~$ sync; dd if=/dev/zero of=tempfile bs=10M count=1024; sync
1024+0 записей получено
1024+0 записей отправлено
10737418240 байт (11 GB, 10 GiB) скопирован, 32,6024 s, 329 MB/s
user@test2:~$ sync; dd if=/dev/zero of=tempfile bs=10M count=1024; sync
1024+0 записей получено
1024+0 записей отправлено
10737418240 байт (11 GB, 10 GiB) скопирован, 34,2939 s, 313 MB/s
user@test2:~$ sync; dd if=/dev/zero of=tempfile bs=10M count=1024; sync
1024+0 записей получено
1024+0 записей отправлено
10737418240 байт (11 GB, 10 GiB) скопирован, 34,1744 s, 314 MB/s

user@test2:~$ sudo /sbin/sysctl -w vm.drop_caches=3
vm.drop_caches = 3
user@test2:~$ dd if=tempfile of=/dev/null bs=10M count=1024
1024+0 записей получено
1024+0 записей отправлено
10737418240 байт (11 GB, 10 GiB) скопирован, 19,1499 s, 561 MB/s
user@test2:~$ sudo /sbin/sysctl -w vm.drop_caches=3
vm.drop_caches = 3
user@test2:~$ dd if=tempfile of=/dev/null bs=10M count=1024
1024+0 записей получено
1024+0 записей отправлено
10737418240 байт (11 GB, 10 GiB) скопирован, 19,1675 s, 560 MB/s
user@test2:~$ sudo /sbin/sysctl -w vm.drop_caches=3
vm.drop_caches = 3
user@test2:~$ dd if=tempfile of=/dev/null bs=10M count=1024
1024+0 записей получено
1024+0 записей отправлено
10737418240 байт (11 GB, 10 GiB) скопирован, 19,2906 s, 557 MB/s