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56%
Finding and recording memory errors
11.04.2016
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»
2016
»
Issue 32: Measu...
»
on disk; 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
55%
Preload Trick
11.05.2021
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, 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); gFlops = 2*
N*N*N
/ (elapsedTime * 1e+
9
); disp(sprintf("
N
= %4d
55%
Listing 4
21.08.2012
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Articles
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Warewulf 4 Code
»
1/20 Installing : freetype-2.
3
.11-6.el6_2.
9
.i686
2/20
Installing : fontconfig-2.8.0-
3
.el6.i686
55%
Listing 5
21.08.2012
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Warewulf 4 Code
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.1 M Total download size:
3.9
M Installed size: 18 M Is this ok [y/
N
]: y Downloading Packages: (1/4): php-5.
3.3
-14.el6_
3
.x86_64.rpm | 1.1
MB
00:00 (2/4): php-cli-5.
3.3
55%
Rethinking RAID (on Linux)
16.03.2021
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, ioengine=libaio, iodepth=32 fio-
3
.12 Starting 1 process Jobs: 1 (f=1) test: (groupid=0, jobs=1): err= 0: pid=5872: Sat Jan
9
16:35:08 2021 read: IOPS=251k, BW=979MiB/s (1026
MB
/s)(2045MiB/2089msec
55%
Hunt down vulnerabilities with the Metasploit pen-testing tool
28.11.2021
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»
2021
»
Issue 66: Inci...
»
to 192.168.122.236. Escape character is '^]'.
220
(vsFTPd 2.
3
.4) user mfeilner:) 331 Please specify the password.
^] telnet> quit Connection closed. [mfeilner@parrot][~] $ telnet 192
54%
Tips and Tricks for Containers
12.05.2020
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TAG IMAGE ID CREATED SIZE cuda 10.1-base-ubuntu19.04-octave b01ee7
a
9
eb2d 47 seconds ago 873
MB
nvidia/cuda 10.1-base-ubuntu18.04
3
b55548ae91f 4 months ago 106
MB
hello
54%
I/O Profiling at the Block Level
27.08.2014
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record size, (2) sequential read testing with 1
MB
record size, and (
3
) random write and read (4KB). In running these tests, I wanted to see what block layer information ioprof revealed. The system I
54%
Monitoring NFS Storage with nfsiostat
12.03.2013
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is shown in Listing 1. Listing 1: Sample nfsiostat Output Linux 2.6.18-308.16.1.el5.centos.plus (home8) 02/10/2013 _i686_ (1 CPU) 02/10/2013 03:38:48 PM Filesystem: r
MB
_nor/s w
MB
54%
Linux device mapper writecache
30.01.2020
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2020
»
Issue 55: AWS L...
»
Zhao through his summer internship at IBM Research. The dm-cache module was integrated into the Linux kernel tree as of version
3.9
. It is an all-purpose caching module and is written and designed to run
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