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24%
Understanding Layer 2 switch port security
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
Lead Image © Taffi, Fotolia.com
:1071867223(0) win 512 98:15:eb:38:f3:c1 c8:d7:c1:61:be:a3 0.0.0.0.30693 > 0.0.0.0.57646: S 1759104040:1759104040(0) win 512 dc:6d:43:15:be:52 99:19:41:22:4e:36 0.0.0.0.29211 > 0.0.0.0.63665: S 481173385
24%
Embarrassingly parallel computation
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Lead Image © Lucy Baldwin, 123RF.com
compute server (Figure 3) [11]. Dependancies for this code on Ubuntu 22.04 are easily sourced: Figure 3: Shockwave is put to use running numerical
24%
Shell practice: Introduction to the sed stream editor
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © Dmitriy Sladkov, 123RF.com
quotes ('). The short shell script in Listing 3 shows how to handle variables by searching through the sample file and outputting the matching lines. Figure 22 shows the result. Listing 3 search
24%
Profiling Python code
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image ©-Yong Hian Lim, Fotolia.com
100783.0 1.3 27.6 vel[i,j] = vel[i,j] + 0.5*dt*( force[i,j] * rmass + acc[i,j] ) 142 # end for 143
24%
Modern Fortran for today and tomorrow
17.06.2017
Home »  Archive  »  2017  »  Issue 39: Conta...  » 
Lead Image © homestudio, 123RF.com
+ X3 + 1 X4 + X5 + X6 ----------------------------- 11111111112222222222 12345678901234567890123456789 By default, F77 defines variables starting with (upper- or lowercase) i, j
24%
The SDFS deduplicating filesystem
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © maridav, 123RF.com
: mkfs.sdfs --volume-name=pool3 --volume-capacity=400GB \ --chunk-store-local false --cluster-block-replicas=3 If a DSE fails, the others step in to take its place. However, this replication has
24%
Linux nftables packet filter
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © alphaspirit, 123RF.com
The Linux kernel already contains a variety of packet filters, starting with ipfwadm and followed by ipchains and iptables. Kernel 3.13 saw the introduction of nftables [1], which uses the nft tool
24%
Julia: A New Language For Technical Computing
31.05.2012
Home »  HPC  »  Articles  » 
Octave R JavaScript   v3f670da0 v2.7.1 vR2011a v3.4 v2.14.2 v8 3.6.6.11 fib 1.97 31.47 1,336.37 2
24%
A ptrace-based tracing mechanism for syscalls
06.10.2022
Home »  Archive  »  2022  »  Issue 71: Kuber...  » 
Photo by Nadjib BR on Unsplash
_PRELOAD, as well. libiotrace: Just Another Profiling Tool? A typical CPU computes data faster than data can be fetched from or stored to main memory (the so-called memory wall) [3]. Storage only exacerbates
24%
Tuning ZFS for Speed on Linux
17.03.2020
Home »  HPC  »  Articles  » 
.39K     sde          -      -      0      0     16  3.38K     sdf          -      -      0      0     16  3.37K logs             -      -      -      -      -      -   nvme0n1p2      0    92G      0      0    586  56.6

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