Brendan Gregg

AUGUST 18, 2019

This example instrumented one of many thousands of available events. BPF has been extended (aka eBPF) in recent years for providing a safe way to extend kernel functionality, and has become a hot topic in systems engineering, with at least 24 talks on BPF at the last Linux Plumber's conference. system(".") pid process ID.

Latency 68

Latency C++ Cache Programming 68

Percona

DECEMBER 27, 2022

Encrypting data at rest in a database management system (DBMS) refers to securing data by encrypting it when it is not being used or accessed. Several tools are available for implementing disk-level encryption, including BitLocker for Windows, dm-crypt for Linux, and FileVault for MacOS. Encryption available in databases.

Database 94

Database Storage Servers Strategy 94

Percona

AUGUST 29, 2018

For optimum performance, a PostgreSQL database depends on the operating system parameters being defined correctly. PostgreSQL uses System V (SysV) that requires SHMMAX setting. So now it requires fewer bytes of System V shared memory. DETAIL: Failed system call was shmget(key=1, size=2072576, 03600). Until version 9.2,

Tuning 57

Tuning Database Servers Processing 57

Percona

AUGUST 29, 2023

Data redundancy, a database version of a RAID Pondering the case of high availability and redundancy, one replicates data by creating a replica via streaming replication. Now let’s stretch our imagination and consider a second method of high availability, ala Citus. The same can be said for Citus data sharding. 1 citus | 11.1-1

C++ 81

C++ Database Storage Testing 81

SQL Server According to Bob

JANUARY 11, 2020

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Servers 40

Servers Cache Database Media 40