Percona

DECEMBER 20, 2023

Modern servers operate with terabytes of RAM, and by default, processors work with virtual memory address translation for each 4KB page. OS maintains a huge list of allocated and free pages to make slow but reliable address translation from virtual to physical. Huge pages make PostgreSQL faster; can we implement it in Kubernetes?

C++ 97

C++ Virtualization Benchmarking Database 97

Percona

OCTOBER 2, 2023

virtual = 2.2G virtual = 2.2G 2004l# Percona Toolkit System Summary Report ###################### Date | 2023-09-25 14:43:34 UTC (local TZ: CDT -0500) Hostname | testbox Uptime | 44 min, 1 user, load average: 0.47, 0.67, 0.57 Platform | Linux Release | Ubuntu 22.04.3 LTS (jammy) Kernel | 6.2.0-33-generic Shared | 475.0M Buffers | 3.8G

Cache 98

Cache Database Virtualization Servers 98

Testsigma

AUGUST 12, 2021

Remote execution: With TestComplete’s TestExecute, we can execute our tests on a cloud, a virtual machine, or a local machine. On BrowserStack, we can also choose a resolution that we’d like to test on, for instance, 800×600 to 2048×1536. Everything can be accessed from any geographical location. Source: BrowserStack.

Testing 102

Testing Testing Tools Mobile Cloud 102

HammerDB

NOVEMBER 22, 2021

shared_preload_libraries = 'pg_stat_statements,pgsentinel' track_activity_query_size=2048 pg_stat_statements.save=on pg_stat_statements.track=all pgsentinel_pgssh.enable = true pgsentinel_ash.pull_frequency = 1 pgsentinel_ash.max_entries = 1000000. The example shows a TPROC-C workload running with 4 Active Virtual Users. pgsentinel.c

Metrics 62

Metrics Benchmarking C++ Database 62

Testsigma

MAY 5, 2021

Plus, it’s a cloud-based testing platform that supports testing on both real devices and virtual devices. Price : $29 upwards monthly, when billed annually. EndTest: EndTest is a scriptless testing tool that supports end-to-end web and mobile testing.

Testing Tools 74

Testing Tools Testing Internet Internet 74

Brendan Gregg

AUGUST 18, 2019

bpftrace uses BPF (Berkeley Packet Filter), an in-kernel execution engine that processes a virtual instruction set. In this post I'll summarize the bpftrace language, variable types, probes, and tools.

Latency 68

Latency C++ Cache Programming 68

SQL Server According to Bob

JANUARY 11, 2020

​​ The following table outlines the virtual protection states. Page State Virtual Protection State Dirty Read Write ​​ during the modification. Page State Virtual Protection State Dirty Read Write ​​ during the modification.

Servers 40

Servers Cache Database Media 40