FlameScope Pattern Recognition

lamescope is a new open source performance visualization tool that uses subsecond offset heat maps a

bpftrace (DTrace 2.0) for Linux 2018

he private bpftrace repository has just been made public, which is big news for DTrace fans. Created
Brendan Gregg's 2018年10月08日

Evaluating the Evaluation: A Benchmarking Checklist

co-worker introduced me to Craig Hanson and Pat Crain's performance mantras, which neatly summarize
Brendan Gregg's 2018年06月30日

Linux bcc/eBPF tcpdrop

hile debugging a production issue of kernel-based TCP packet drops, I remembered seeing a new functi
Brendan Gregg's 2018年05月31日

USENIX LISA 2018: CFP Now Open

oin us for 3 days in Nashville at LISA'18. Post by Brendan Gregg and Rikki Endsley.
Brendan Gregg's 2018年04月30日

TCP Tracepoints

CP tracepoints have arrived in Linux! Linux 4.15 added five of them, and 4.16 (not quite released ye
Brendan Gregg's 2018年03月22日

KPTI/KAISER Meltdown Initial Performance Regressions

he recently revealed Meltdown and Spectre bugs are not just extraordinary issues of security, but al
Brendan Gregg's 2018年02月09日

How To Measure the Working Set Size on Linux

he Working Set Size (WSS) is how much memory an application needs to keep working. Your app may have
Brendan Gregg's 2018年01月17日

AWS re:Invent 2017: How Netflix Tunes EC2

y last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an
Brendan Gregg's 2017年12月31日

AWS EC2 Virtualization 2017: Introducing Nitro

Hardware virtualization for cloud computing has come a long way, improving performance using techn
Brendan Gregg's 2017年11月29日

Brilliant Jerks in Engineering

otice board at Ericsson, Stockholm (pic by DeirdreS) Many of us have worked with them: the engineer
Brendan Gregg's 2017年11月13日

EuroBSDcon: System Performance Analysis Methodologies

or my first trip to Paris I gave the closing keynote at EuroBSDcon 2017 on performance methodologies
Brendan Gregg's 2017年10月28日

Solaris to Linux Migration 2017

any people have contacted me recently about switching from Solaris (or illumos) to Linux, especially
Brendan Gregg's 2017年09月05日

Total Solar Eclipse 2017

hile all eyes and instruments were aimed at the total eclipse of August 21st, I had a video camera p
Brendan Gregg's 2017年08月24日

Linux Load Averages: Solving the Mystery

oad averages are an industry-critical metric – my company spends millions auto-scaling cloud instanc
Brendan Gregg's 2017年08月08日