Posted on in programming
In the vibrant forge of C++ development, selecting the right build system feels akin to choosing the perfect weapon – a tool that complements your project's needs and unleashes its potential. Fear not, brave coders, for this guide equips you with the knowledge to forge the ideal alliance between your code …
Posted on in programming
The battle cry of every C++ developer echoes the same: Build faster, code smarter. In this quest for efficiency, build systems stand as our loyal allies, shaping our code into executables with varying degrees of speed and finesse. But which system reigns supreme on the battlefield of real-world projects? To …
Posted on in networking
In the fast-paced world of networking, where milliseconds matter and data demands soar, pinpointing performance bottlenecks can feel like hunting elusive phantoms. While sophisticated tools exist, the often-underrated Cisco Test TCP (TTCP) utility emerges as a hidden gem for gauging real-world throughput on network paths. This practical guide empowers you …
Posted on in networking
In the labyrinthine world of network troubleshooting, pinpointing performance bottlenecks can feel like navigating a maze blindfolded. While various tools exist, the Cisco Test TCP (TTCP) utility often emerges as a hidden gem for gauging real-world throughput on network paths. This article embarks on a comprehensive exploration of TTCP, uncovering …
Posted on in System Administration
I use snmptrapd to catch SNMP traps and then put them into a MySQL database using a pretty generic trap handler. This gives me the opportunity to generate such useful information as:
> SELECT HOUR(time) AS "hour", COUNT(*) AS "bounces" FROM snmptraps
WHERE hostname = 'XXX' AND time > '2011-07-25'
AND trap_oid …Posted on in Networking
I was recently part of a discussion regarding whether or not lowering the
load-interval on a Cisco router or switch interface from the default of 300
seconds had an impact on performance.
Both sides made good points, but
both were based on assumption and conjecture.
5 minute input rate 213000 …Posted on in System Administration
Behold, the benefits of virtualization!
I spent most of the evening preparing to move a few websites. I decided to do some benchmarking just to see what sort of improvement I was getting from the new server setup. Although the old server didn't feel slow when browsing sites, the results …
Posted on in Networking
I would hope there is a better way to do this. The other day, I had a need to see all the interfaces on a router and how much input and output traffic they were passing. This just seems like something that should be built in, but I've not seen …
Posted on in Networking
This seems to be a pretty common problem for Cisco users. Not that Cisco devices have more queue drop problems, just that more Cisco users are a little confused by the information generated in the show interface command.
Specifically, we're talking about the lines that look something like this:
Input …Posted on in Networking
If you've worked on networks long enough, you're probably familiar with
iperf. This application is great for testing
throughput between two computers on your network. Unfortunately, if you find
yourself in a situation where you have less than two computers to test with,
iperf is less than ideal.
Fortunately, Cisco …
