How does the jet stream affect my flight time?

Flights between London and New York, or other transatlantic routes can vary considerably in their flight time. Typically, an eastbound flight from the US to Europe is faster than flying in the other direction, due to the push factor of a jet…

RJ45Z HP Storage works Cable

How to setup an msa1000 using the serial console For RHEL and SLES, HP supplies a utility for configuring and setting up the msa1500/msa1000, delivered as an RPM. While it may be possible to convert this RPM using alien and…

CentOS eth0 DHCP troubleshooting

1. ifconfig eth0Code: /sbin/ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:0C:76:E2:71:C5 inet addr:192.168.1.xxx Bcast:192.168.1.xxx Mask:255.255.255.0 inet6 addr: fe80::xxx:76ff:fee2:71c5/64 Scope:Link UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1 RX packets:593541 errors:0 dropped:0 overruns:0 frame:0 TX packets:386699 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX…

HowTo Install Flexible I/O (Fio) for Storage Benchmarking I/O Testing

Source:https://i0.wp.com/www.virtono.com/community/wp-content/uploads/2018/02/handson-lab-how-to-unleash-your-storage-performance-by-using-nvm-express-based-pci-express-solidstate-drives-30-638.jpg?fit=638%2C359&ssl=1https://community.mellanox.com/s/article/howto-install-flexible-i-o–fio–for-storage-benchmarking-i-o-testingThis post discusses the download, compilation, and use of Flexible I/O (fio) package for I/O benchmarking. References Performance Tuning for Mellanox Adapters GitHub – Flexible I/O Tester Flexible I/O tester – Linux man page Configuration 1. Download the latest fio package. #…

How to get best performance with NICs on Intel platforms

Source: This document is a step-by-step guide for getting high performance from DPDK applications on Intel platforms. 7.1. Hardware and Memory Requirements For best performance use an Intel Xeon class server system such as Ivy Bridge, Haswell or newer.…

Open vSwitch* with DPDK Overview

This article presents a high-level overview of Open vSwitch* with the Data Plane Development Kit (OvS-DPDK)—the high performance, open source virtual switch—and links to further technical articles that dive deeper into individual OvS-DPDK features. This article was written for users…

Mikrotik WiFi Bridge

– Asus has DHCP server pool 192.168.1.1/25– Mikrotik gets WiFi Station hooked on DHCP given IP 192.168.1.87– I’ve created IP 192.168.2.0/24 in ETH2 interface of Mikrotik– Assigned IP 192.168.2.233 to my laptop– Created routing on Asus for 192.168.2.0/24 towards 192.168.1.87…