26%
21.08.2012
just two nodes: test1, which is the master node, and n0001, which is the first compute node):
[laytonjb@test1 ~]$ pdsh -w test1,n0001 uptime
test1: 18:57:17 up 2:40, 5 users, load average: 0.00, 0.00
26%
19.11.2019
Jobs: 1 (f=1): [w(1)][100.0%][w=654MiB/s][w=167k IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=1225: Sat Oct 12 19:20:18 2019
write: IOPS=168k, BW=655MiB/s (687MB/s)(10.0GiB/15634msec); 0
26%
30.01.2020
=1): err= 0: pid=1634: Mon Oct 14 22:18:59 2019
write: IOPS=118k, BW=463MiB/s (485MB/s)(10.0GiB/22123msec); 0 zone resets
[ ... ]
Run status group 0 (all jobs):
WRITE: bw=463MiB/s (485MB/s), 463Mi
26%
28.03.2012
# Kernel: 2.6.32-220.4.1.el6.x86_64 Memory: 7540044 Swap:
# NumDisks: 2 DiskNames: sdb sda
# NumNets: 2 NetNames: lo: eth0:100
# NumSlabs: 201 Version: 2.1
# SCSI: DA:1:00:00:00 DA:2:00:00:00 CD:4:00:00:00
26%
27.08.2014
. It is adjusted to terminal size, so each square = 10.00 MiB
The PDF report may be more precise with each pixel=1MB
Heatmap Key: Black (No I/O), white(Coldest),blue(Cold),cyan(Warm),green(Warmer),yellow(Very Warm),magenta(Hot),red(Hottest)
Notice
26%
30.11.2025
creates a 256MB file in the current directory along with process for the job. This process reads complete file content in random order. Fio records the areas that have already been read and reads each area
26%
05.08.2024
= [size][size]int {{0},{0},}
08
09 for i := 0; i < size; i++ {
10 for j := 0; j < size; j++ {
11 array[i][j]++
12 }
13 }
14
15
26%
11.04.2016
/s wMB/s avgrq-sz ...
sdb 0.00 28.00 1.00 259.00 0.00 119.29 939.69 ...
Parallelism
Multiple computers can access enterprise storage, and multiple threads can access
26%
23.03.2016
, if the second bit from the left is flipped from a 0 to a 1 (11011100), the number becomes 220. A simple flip of one bit in a byte can make a drastic difference in its value. Fortunately, ECC memory can detect
25%
30.11.2025
from compromised systems is John the Ripper (John). John is a free tool from Openwall [1]. System administrators should use John to perform internal password audits. It's a small (<1MB) and simple
