Brendan Gregg

AUGUST 18, 2019

This example instrumented one of many thousands of available events. hardware Hardware counter-based instrumentation. Kernel dynamic tracing of read() bytes bpftrace -e 'kretprobe:vfs_read { @bytes = lhist(retval, 0, 2000, 200) }'. For large environments, this ability can help you save millions. BEGIN Start of bpftrace.

Latency 68

Latency C++ Cache Programming 68

Alex Russell

JUNE 20, 2020

This matters because it is the corpus of attractive content uniquely available through a meta-platform that convinces users to adopt its runtime, and no platform developer can afford to build enough content to be compelling on their own. In each quantum of time, hardware and OS vendors press ahead, adding features.

Hardware 55

Hardware Games Java Media 55

The Morning Paper

JULY 18, 2019

Under high query loads therefore, Neural Bloom Filters could potentially be deployed “ without a catastrophic decrease in throughput, if GPU devices are available ” (emphasis mine). If you can do multiple queries in parallel exploiting GPUs, then Neural Bloom Filters can claw some of that time back. Wrapping up.

Network 86

Network Java Database Hardware 86

SQL Performance

MAY 22, 2019

You might wonder why there isn’t a plan for all 100,000 adhoc queries that executed, and it has to do with how the plan cache works (it’s size based on available memory, when un-used plans are aged out, etc.). What’s critical is that so many adhoc plans exist, compared to what we see for the rest of the cache types.

Cache 54

Cache Performance Hardware Servers 54

Tim Kadlec

JULY 31, 2013

On the first of Yahoo’s guiding principles: First is availability — this is the bedrock of building a website. If the site’s not available to people, game over, we might as well not even bother. And so our job is to make sure that everything we do is out there, working, available to everybody. On another Yahoo! Here at Yahoo!,

Google 40

Google Website Hardware Games 40

SQL Server According to Bob

DECEMBER 18, 2018

SQL Server relies on Forced-Unit-Access (Fua) I/O subsystem capabilities to provide data durability, detailed in the following documents: SQL Server 2000 I/O Basic and SQL Server I/O Basics, Chapter 2. Linux may need similar utilities to control various hardware cache installations. Fua = Forced Unit Access. Device Flush.

Servers 90

Servers Media Cache Storage 90

The Netflix TechBlog

FEBRUARY 13, 2020

The JPEG 2000 format , based on the discrete wavelet transform (DWT), was introduced as a successor to JPEG in the year 2000. Webp does not have all the flexibilities of JPEG 2000. There is a potential benefit in reusing the hardware in place for video compression/decompression. 264, a.k.a.

Code 212

Code Metrics Efficiency Open Source 212