Brendan Gregg

MAY 8, 2021

People often tell me they don't understand performance tool output because they can't tell what's "good" or "bad." It can be hard as performance is subjective. I recently encountered terrible disk performance and thought it'd be useful to collect Linux tool screenshots and share them for reference. Linux 4.15.0-66-generic

Performance 133

Performance Latency Speed Systems 133

Brendan Gregg

MAY 8, 2021

People often tell me they don't understand performance tool output because they can't tell what's "good" or "bad." It can be hard as performance is subjective. I recently encountered terrible disk performance and thought it'd be useful to collect Linux tool screenshots and share them for reference. Hit Ctrl-C to end.

Performance 40

Performance Latency Speed Systems 40

Brendan Gregg

MAY 8, 2021

People often tell me they don't understand performance tool output because they can't tell what's "good" or "bad." It can be hard as performance is subjective. I recently encountered terrible disk performance and thought it'd be useful to collect Linux tool screenshots and share them for reference. Linux 4.15.0-66-generic

Performance 40

Performance Latency Speed Systems 40

CSS - Tricks

MAY 15, 2019

You might have to perform a hard reload ( CTRL + Shift + R ) to re-trigger range requests. Make sure your servers support the HTTP Range: 0-2047 header and respond with status code 206 (Partial Content) to prevent them from delivering the full image twice. If this column is filled, the browser made a successful range request.

Traffic 58

Traffic Website Network Servers 58