15%
02.08.2021
rapiddisk 7.2.0
Copyright 2011 - 2021 Petros Koutoupis
Detached device rd1
To compare the RAM drive with a local 12Gb Serial Attached SCSI (SAS) spinning hard disk drive (HDD) connected to a 6Gb Host Bus
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21.01.2020
/proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : active raid5 sdd1[5] sde1[4] sdc1[2] sdb1[1] nvme0n1p1[0](J)
20508171264 blocks super 1.2 level 5, 512k
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25.03.2020
] [raid6] [raid5] [raid4] [raid10]
md0 : active raid5 sdd1[5] sde1[4] sdc1[2] sdb1[1] nvme0n1p1[0](J)
20508171264 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/3] [UU
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11.05.2021
, elapsed Time = %9.6f, GFlops = %9.6f ", ...
N, elapsedTime, gFlops) );
endfor
Listing 2: Double-Precision Square Matrix Multiply
# Example DGEMM
for N = [2, 4, 8, 16
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30.01.2020
lvm2 --- <232.89g <232.89g
/dev/sdb lvm2 --- <6.37t <6.37t
Next, I add both volumes into a new volume group labeled vg-cache,
$ sudo vgcreate vg-cache /dev/nvme0n1 /dev
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26.01.2012
written = 216,707,618 (216.707618 MB)
Number of Write function calls = 35,369
Average (mean) bytes per call = 6,131.210016 (bytes) (0.006131 MB)
Standard Deviation bytes per call = 112
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15.02.2012
written = 216,707,618 (216.707618 MB)
Number of Write function calls = 35,369
Average (mean) bytes per call = 6,131.210016 (bytes) (0.006131 MB)
Standard Deviation bytes per call = 112
15%
25.03.2021
[1] sdc1[0]
244065408 blocks super 1.2 [2/2] [UU]
[=>...................] resync = 6.4% (15812032/244065408) finish=19.1min speed=198449K/sec
bitmap: 2/2 pages [8KB], 65536KB chunk
15%
30.01.2024
Dell Precision Workstation T7910
Power
1,300W
CPU
2x Intel Xeon Gold E5-2699 V4, 22 cores, 2.4GHz, 55MB of cache, LGA 2011-3
GPU, NPU
n/a*
Memory
15%
13.12.2018
of the data was still residing in the kernel's page cache [6], waiting eventually to be persisted to disk. This resulted in an impressive (and impossible for the hardware) 885MBps transfer rate, but not to disk
