Tasty » Adam Sampson's performance bookmarks

iosnoop For Linux edit / delete

"How does this work? It's just a shell script!" Linux's ftrace facility turns out to be surprisingly capable... and there are a whole load of neat scripts that use it in perf-tools.

to debugging ftrace linux perf performance tracing ... on 14 October 2016

Command-line tools can be 235x faster than your Hadoop cluster edit / delete

Nothing wrong with a bit of 1970s technology in the right context -- how to solve a not-very-big-data problem the right way.

to awk cloud cluster hadoop performance pipeline unix ... on 14 September 2016

Plogue R&D: Plogue livenes edit / delete

Playing live music on the NES sound chip... by changing one bit at a time! Somewhat reminiscent of viznut's one-liners.

to chiptune music nes performance retrocomputing ... on 22 January 2016

HPN-SSH edit / delete

Making SSH go faster on high-performance networks.

to buffering network performance ssh ... on 13 March 2015

Gordon Bell: Computers, Projects, Patents, Books, and Papers edit / delete

This includes electronic versions of many of his classic books on computer architecture -- very good stuff.

to ag0803 architecture cpu design electronics etext performance retrocomputing ... on 18 January 2015

Revisiting FullHD X11 desktop performance of the Allwinner A10 edit / delete

Looking, in detail, into how the CPU and GPU contend for memory on the A10 -- and why some A10 machines (particularly with 16-bit memory) struggle with high resolutions. This is lovely stuff -- it's like talking about the Spectrum all over again!

to allwinner arm contention dram embedded memory performance video ... on 14 November 2014

robertdavidgraham/robdns · GitHub edit / delete

A high-performance DNS server. The reason it's high-performance is that it includes its own network stack...

to dns networking performance software tcpip ... on 03 October 2014

Ftrace: The hidden light switch [LWN.net] edit / delete

Using Linux's function tracer to investigate a kernel performance problem. I was looking at this again recently because I'd like to know when exactly bash is getting called...

to ftrace kernel linux performance tracing ... on 03 October 2014

Modern Microprocessors - A 90 Minute Guide! edit / delete

This covers nearly all of the architecture side of AG0803, and some more stuff besides; a nice overview.

to ag0803 architecture cpu memory performance pipelining superscalar ... on 24 August 2014

How to optimize Raspberry Pi code using its GPU « Pete Warden's blog edit / delete

Speeding up computer vision code using the VideoCore.

to gpu optimisation performance raspberry-pi videocore vision ... on 24 August 2014