Dynatrace

NOVEMBER 29, 2022

Dynatrace IT itself has implemented a NoOps model for our own IT operations. With a skeleton staff of 7 on a on 24×7 schedule, we increased the number releases from 2 to 26 per year and reduced production bugs by 93% since 2014. Infrastructure as code is sometimes referred to as programmable or software-defined infrastructure.

Infrastructure 177

Infrastructure Code Cloud DevOps 177

SQL Performance

JUNE 21, 2019

Prior to SQL Server 2012, the maximum server memory value only applied to the bufferpool, so customers needed to limit the amount of memory the bufferpool could use to save memory for the operating system and other processes. For SQL Server 2008R – 2014, you could lower this threshold using trace flag 2371.

Servers 49

Servers Azure Hardware Database 49

Brendan Gregg

AUGUST 8, 2017

Nowadays, the source code to old operating systems can also be found online. And here's an excerpt from [Linux] today (include/linux/sched/loadavg.h): #define EXP_1 1884 /* 1/exp(5sec/1min) as fixed-point */ #define EXP_5 2014 /* 1/exp(5sec/5min) */ #define EXP_15 2037 /* 1/exp(5sec/15min) */. Why, exactly, did Linux do this?

Latency 111

Latency Metrics C++ Systems 111