«Чистый» тест производительности при обновлении NOS 4.5 -> 4.6

Еще один тест производительности на одной и той же системе, до и после обновления на NOS 4.6
Это топовая NX-3460-G4, с 2x SSD 1,2TB, 4x SATA 2TB, 512GB RAM, 2x E5-2680v3 на каждой из 4 ее нод.
На ней был установлен Acropolis Hypervisor (AHV) и затем NOS 4.5.1.2 обновлена на NOS 4.6, тест diagnostics.py был запущен до и после 1-Click обновления.

Было (AHV NOS 4.5.1.2):

Waiting for the hot cache to flush …………. done.
2016-02-24_05-36-02: Running test «Sequential write bandwidth» …
1653 MBps , latency(msec): min=9, max=1667, median=268
Average CPU: 10.1.16.212: 36% 10.1.16.209: 48% 10.1.16.211: 38% 10.1.16.210: 39%
Duration fio_seq_write : 33 secs
*******************************************************************************

Waiting for the hot cache to flush ……. done.
2016-02-24_05-37-15: Running test «Sequential read bandwidth» …
3954 MBps , latency(msec): min=0, max=474, median=115
Average CPU: 10.1.16.212: 35% 10.1.16.209: 39% 10.1.16.211: 30% 10.1.16.210: 31%
Duration fio_seq_read : 15 secs
*******************************************************************************

Waiting for the hot cache to flush ……… done.
2016-02-24_05-38-22: Running test «Random read IOPS» …
115703 IOPS , latency(msec): min=0, max=456, median=4
Average CPU: 10.1.16.212: 73% 10.1.16.209: 75% 10.1.16.211: 74% 10.1.16.210: 73%
Duration fio_rand_read : 102 secs
*******************************************************************************

Waiting for the hot cache to flush ……. done.
2016-02-24_05-40-44: Running test «Random write IOPS» …
113106 IOPS , latency(msec): min=0, max=3, median=2
Average CPU: 10.1.16.212: 64% 10.1.16.209: 65% 10.1.16.211: 65% 10.1.16.210: 63%
Duration fio_rand_write : 102 secs
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Стало после обновления (AHV NOS 4.6):

Waiting for the hot cache to flush …………. done.
2016-03-11_03-50-03: Running test «Sequential write bandwidth» …
1634 MBps , latency(msec): min=11, max=1270, median=281
Average CPU: 10.1.16.212: 39% 10.1.16.209: 46% 10.1.16.211: 42% 10.1.16.210: 47%
Duration fio_seq_write : 33 secs
*******************************************************************************

Waiting for the hot cache to flush …….. done.
2016-03-11_03-51-13: Running test «Sequential read bandwidth» …
3754 MBps , latency(msec): min=0, max=496, median=124
Average CPU: 10.1.16.212: 22% 10.1.16.209: 37% 10.1.16.211: 23% 10.1.16.210: 28%
Duration fio_seq_read : 15 secs
*******************************************************************************

Waiting for the hot cache to flush ……….. done.
2016-03-11_03-52-24: Running test «Random read IOPS» …
218362 IOPS , latency(msec): min=0, max=34, median=2
Average CPU: 10.1.16.212: 80% 10.1.16.209: 91% 10.1.16.211: 80% 10.1.16.210: 82%
Duration fio_rand_read : 102 secs
*******************************************************************************

Waiting for the hot cache to flush …….. done.
2016-03-11_03-54-43: Running test «Random write IOPS» …
156843 IOPS , latency(msec): min=0, max=303, median=2
Average CPU: 10.1.16.212: 69% 10.1.16.209: 72% 10.1.16.211: 64% 10.1.16.210: 74%
Duration fio_rand_write : 102 secs
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