Brendan Gregg

MAY 8, 2021

It seemed to have several set speeds, and when pushing hard it would try a faster speed for a couple of seconds, then a faster one, until it found the fastest it could operate (presumably it tries faster speeds until it begins to get sector-ECC errors). Hit Ctrl-C to end. Hit Ctrl-C to end.

Performance 142

Performance Latency Speed Systems 142

Percona

AUGUST 29, 2023

Columnar storage of tables can compress data, speeding up scans and supporting fast projections, both on regular and distributed tables. The distributed query engine can route and parallelize SELECT, DML, and other operations on distributed tables across the cluster. citus_columnar | 11.1-1 1 citus | 11.1-1 citus_columnar | 11.1-1

C++ 77

C++ Database Storage Testing 77

Percona

OCTOBER 2, 2023

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 33-generic Architecture | CPU = 64-bit, OS = 64-bit Threading | NPTL 2.35

Cache 96

Cache Database Virtualization Servers 96

Brendan Gregg

MAY 8, 2021

It seemed to have several set speeds, and when pushing hard it would try a faster speed for a couple of seconds, then a faster one, until it found the fastest it could operate (presumably it tries faster speeds until it begins to get sector-ECC errors). Hit Ctrl-C to end. Hit Ctrl-C to end.

Performance 40

Performance Latency Speed Systems 40

Brendan Gregg

MAY 8, 2021

It seemed to have several set speeds, and when pushing hard it would try a faster speed for a couple of seconds, then a faster one, until it found the fastest it could operate (presumably it tries faster speeds until it begins to get sector-ECC errors). Hit Ctrl-C to end. Hit Ctrl-C to end.

Performance 40

Performance Latency Speed Systems 40

SQL Server According to Bob

JANUARY 11, 2020

Character POS ASCII Value Formula Value A 1 65 67 C 2 67 69 Checksum 136 Comparing ​​ the checksum values indicates ​​ that the values do not match and ​​ damage ​​ has occurred to the data.

Servers 40

Servers Cache Database Media 40