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18%
Fixing Ceph performance problems
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Lead Image © Kritiya Sumpun, 123RF.com
storage by splitting up these files and putting them back together again later. When the user uploads a file to RADOS, the client breaks it down into several 4MB objects before uploading, which RADOS
18%
Parallel I/O Chases Amdahl Away
12.09.2022
Home »  HPC  »  Articles  » 
 = np.random.rand(nx,ny)*100.0   # Random data in arrayy       np.save(filename, a) # Write data to file       print("    Just finished writing file, ",filename,".npy") # end for The code in Listing 2 reads the five files
18%
Storage trends for taming the flood of data
27.09.2024
Home »  Archive  »  2024  »  Issue 83: Storage  » 
Lead Image © Natalia Lukiyanova, 123RF.com
, for example, the waste of storage space and energy and the unnecessary effect on service life when writing to SSDs. When you transfer 1MB to an SSD, the drives actually writes considerably more data
18%
PostgreSQL Replication Update
14.08.2017
Home »  Archive  »  2017  »  Issue 40: Lean...  » 
Lead Image © Golkin Oleg, 123RF.com
can only accomplish this by rolling back one of the two transactions ex post (i.e., after the commit). For example, suppose you have $100 in a joint bank account and two people want to withdraw $90
18%
Debian's quest for reproducible builds
05.12.2016
Home »  Archive  »  2016  »  Issue 36: Autom...  » 
Lead Image © Author, 123RF.com
numbering 21,365 from a total of 24,135 were reproducible in Debian, which corresponds to an average of 88.5 percent in the individual branches. "Testing," with more than 90 percent, does better than
18%
Saving Storage Space with Reduced Precision
19.06.2023
Home »  HPC  »  Articles  » 
round to even Round to the nearest value, ties round away from zero Directed rounding toward 0 Directed rounding toward +infinity Directed rounding toward −infinity Converting from FP64
18%
Platform independence with PowerShell Core
09.06.2018
Home »  Archive  »  2018  »  Issue 45: Autom...  » 
Lead Image Photo by Harli Marten on Unsplash
set larger than 5MB: > Get-Process | Where-Object -FilterScript { $_.WS -gt 5MB } | Stop-Process The native solution on Linux would be a complex combination of Bash, AWK, and Grep. The Power ... Microsoft has broken new ground with the release of PowerShell Core 6.0, which at heart is a complete reboot in terms of architecture and objectives. For the first time, a new version is not linked ... PowerShell Core 6.0
18%
Migrating CentOS to Rocky Linux with migrate2rocky
06.10.2022
Home »  Archive  »  2022  »  Issue 71: Kuber...  » 
Photo by Ray Hennessy on Unsplash
distributions based on RHEL 8, the migration process is fairly simple. The first step is to make sure you have enough space on your partitions: 250MB on /usr , 1.5GB on /var , and 50MB on /boot . Failure
18%
HPC Storage – I/O Profiling
26.01.2012
Home »  HPC  »  Articles  » 
. rMB/s: Number of megabytes read from the device per second. wMB/s: Number of megabytes written to the device per second. avgrq-sz: Average size (in sectors) of the requests issued to the device
18%
Application virtualization with Docker
08.10.2015
Home »  Archive  »  2015  »  Issue 29: Rescu...  » 
Lead Image © Oleksiy Mark, 123RF.com
. Container 2.0 with Docker Docker is a real shooting star. The first public release only arrived on the market in March 2013, but today it is supported by many well-known companies. It is, for example

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