55%
13.12.2022
/11/05 08:56:13 info unpack layer: sha256:1a930d163dcafa193dc2c3c005d9c220ae1c07a48cad5f7feed0066ada0b998f
2022/11/05 08:56:15 info unpack layer: sha256:d3ca234f568b088b991388a0e9e8b61b05ac8627522f10fe16df2b81d51c0748
54%
02.08.2021
SGEMM
for N = [2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192]
A = single( rand(N,N) );
B = single( rand(N,N) );
start = clock();
C = A*B;
elapsedTime = etime(clock(), start
54%
16.03.2021
, (T) 4096B-4096B, ioengine=libaio, iodepth=32
fio-3.12
Starting 1 process
Jobs: 1 (f=1)
test: (groupid=0, jobs=1): err= 0: pid=5956: Sat Jan 9 16:38:53 2021
read: IOPS=256k, BW=998MiB/s (1047MB
52%
21.01.2020
will be the device you will use for the write-back cache of your RAID pool. It is not a very large volume (about 256GB):
sudo blockdev --getsize64 /dev/nvme0n1
250059350016
Next, create a single partition
52%
25.03.2020
(about 256GB):
sudo blockdev --getsize64 /dev/nvme0n1
250059350016
Next, create a single partition on the NVMe drive and verify that the partition has been created:
$ sudo parted --script /dev/nvme0n1
52%
25.03.2021
, ioengine=libaio, iodepth=32
fio-3.12
Starting 1 process
Jobs: 1 (f=1)
test: (groupid=0, jobs=1): err= 0: pid=5956: Sat Jan 9 16:38:53 2021
read: IOPS=256k, BW=998MiB/s (1047MB/s)(2045MiB/2049msec
52%
02.08.2021
with a different size (Listing 3). The output from the second command verifies that the RAM drives were created.
Listing 3
Adding RAM Drive of 32MB
$ sudo rapiddisk -a 32
rapiddisk 7.2.0
Copyright
52%
11.04.2016
.5 MiB/s ( 79.7 Mbit/s)
256 KiB blocks: 53.9 IO/s, 13.5 MiB/s (113.1 Mbit/s)
512 KiB blocks: 39.8 IO/s, 19.9 MiB/s (166.9 Mbit/s)
1 MiB blocks: 33.3 IO/s, 33.3 MiB/s (279.0 Mbit/s)
2 Mi
52%
20.03.2014
access is aligned to internal sector size, so that should be your first consideration. Without further data, the rule of thumb adopted by Microsoft in Windows 7 of aligning to 1MB (2048x512 and 256x4096
52%
09.12.2021
of threads, use:
$ plzip -v -9 -n 32 package-list.txt
package-list.txt: 2.640:1, 37.88% ratio, 62.12% saved, 11626 in, 4404 out.
The -n 32
option tells plzip
to use 32 threads to perform the compression
