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30%
Enlarging the TCP initial window
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Photo by Jani Brumat on Unsplash
private homes in large cities use fiber optics with transmission rates of 1GBps. However, the basic concept of TCP has not changed in all these years. TCP does not know the maximum transfer rate
30%
Assess USB performance while exploring storage caching
13.12.2018
Home »  Archive  »  2018  »  Issue 48: Secur...  » 
Lead Image © Lucy Baldwin, 123RF.com
of the data was still residing in the kernel's page cache [6], waiting eventually to be persisted to disk. This resulted in an impressive (and impossible for the hardware) 885MBps transfer rate, but not to disk
30%
A closer look at hard drives
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Lucy Baldwin, 123RF
-generation SSD, being tested on a 3Gbps SATA 2 bus. I have an 80GB Intel 320 SSD, performing remarkably close to its specified sequential read rating of 270MBps [1], but it is the second-generation drive
30%
Monitoring NFS Storage with nfsiostat
12.03.2013
Home »  HPC  »  Articles  » 
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: rMB_nor/s w
30%
Storage protocols for block, file, and object storage
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Photo Johannes Plenio on Unsplash
on a fabric simultaneously. Existing Gen5 (16Gbps) and Gen6 (32Gbps) FC SANs can run FC NVMe over existing SAN fabrics with little change, because NVMe meets all specifications, according to the Fibre Channel
30%
Let the hardware do the heavy lifting
09.06.2018
Home »  Archive  »  2018  »  Issue 45: Autom...  » 
Photo by Victor Freitas on Unsplash
machines connected back-to-back with a 100Gbps (100G) network adapter and OpenSSL, our lab tested application s_time on the client and s_server on the server, with and without inline TLS enabled and using
30%
ORNL Launches 200-Petaflop Supercomputer
14.06.2018
Home »  HPC  »  News  » 
 
Power9 processors and six NVIDIA Tesla V100 graphics processing unit accelerators. The compute servers are interconnected with Mellanox EDR 100Gbps InfiniBand. The system has more than 10 petabytes
30%
Tuning I/O Patterns in Python
18.12.2013
Home »  HPC  »  Articles  » 
common in HPC to illustrate these differences: C, Fortran 90, and Python (2.x series). I run the examples on a single 64-bit system with CentOS 6.2 using the default GCC compilers, GCC and GFortran (4.4.6
30%
Secure containers with a hypervisor DMZ
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © lightwise, 123RF.com
of Kata Containers go back further than 2017, and the project brings together efforts from Intel and the Hyper.sh secure container hosting service: Clear Containers [6] or runV [7]. Kata Containers use
30%
Parallel Versions of Familiar Serial Tools
28.08.2013
Home »  HPC  »  Articles  » 
uses a single core. Sixty-three cores are sitting there idle until the Gzip finishes. Moreover, using a single core to Gzip a file on a 2PB Lustre system that is capable of 20GBps is like draining

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