Brendan Gregg

MAY 16, 2017

I previously wrote about Netflix in [2015] and [2016], and if you are interested in what it's like to work here, I already covered much in those posts. I talked about what I learned in my [SREcon 2016] keynote, and how the aims and tools differ between performance engineering and SRE performance analysis. Time flies!

Java 75

Java Entertainment Engineering Scalability 75

Alex Podelko

OCTOBER 20, 2016

I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. I decided to publish a few parts here to see if anything triggers a discussion. It would be published as separate posts: – Introduction (a short teaser).

Performance Testing 100

Performance Testing Architecture Testing Performance 100

The Netflix TechBlog

MAY 1, 2019

surround audio in 2010, and began streaming Dolby Atmos in 2016 , but wanted to bring studio quality sound to our members around the world. We answered these questions via experimentation that led to fine-tuning the adaptive streaming for audio algorithm in order to increase audio quality without degrading the video experience.

Engineering 274

Engineering Network Media Entertainment 274

KeyCDN

JANUARY 31, 2019

As of 2016, Bucharest alone had a population of over 1.83 Growth Of Internet in Romania Although the Internet penetration rate isn’t as high as other countries, at 58% as of 2016, the Internet speeds in Romania have been known to be one of the fastest in the world. million people. Happy content delivery!

Internet 48

Internet Internet Ecommerce Speed 48

SQL Performance

JUNE 21, 2019

SQL Server Database Maintenance plans prior to SQL Server 2016 only allowed to rebuild or reorganize all indexes. Beginning with SQL Server 2016, you can now specify similar logic based on fragmentation levels. SQL Server 2016 introduced soft-NUMA nodes. Many third-party tools offer the same logic. SQL Server Agent Alerts.

Servers 49

Servers Azure Hardware Database 49

KeyCDN

OCTOBER 24, 2018

As of 2016, there were just over 5.1 Alternatively, If you would like to request a POP in a certain location or a new feature please let us know on our feature requests community page and stay tuned for more exciting announcements. million Internet users in Finland resulting in a 92.5% penetration rate. Happy content delivery!

Internet 48

Internet Internet Speed Network 48

Percona

APRIL 12, 2023

2016: The company adds service-loaded MongoDB Professional to its mix. So if they can’t beat ‘em in the DBaaS space, they often feel like they have to join ‘em — to the tune of total stack sharing or some proprietary arrangement. The effects have hit cloud vendors who can’t possibly compete with MongoDB.

Open Source 83

Open Source Programming Database Servers 83

Percona

JANUARY 17, 2019

id: 1 select_type: SIMPLE table: ontime type: ALL possible_keys: NULL key: NULL key_len: NULL ref: NULL rows: 173706586 Extra: Using where; Using filesort 1 row in set (0.00 sec). /* another run */. 10 rows in set (3 min 46.90 sec) /* run 2 */ 10 rows in set (28.49

Cache 47

Cache C++ AWS Airlines 47

Rigor

JANUARY 13, 2020

These are the bestsellers in the web performance field, including the good old Speed Up Your Site (2003) by Andy King; Steve Souders’ Even Faster Web Sites (2009) ; Ilya Grigorik’s High Performance Browser Networking (2013) ; Tammy Everts’ Time is Money (2016) ; and a handful of more recent publications.

Performance 75

Performance Social Media Website Website Performance 75

SQL Performance

DECEMBER 9, 2020

The upside of option 1 is that it works in all SQL Server editions and is relevant in SQL Server 2016 or later, since the batch mode Window Aggregate operator was introduced in SQL Server 2016. So, my tuning efforts ended up yielding an improvement of 43.5 The optimizer optimized it out. The challenge is on!

C++ 114

C++ Servers Testing Processing 114

Brendan Gregg

OCTOBER 7, 2018

bpftrace has most of DTrace's capabilities and more. ## bpftrace The prior work that led to [bpftrace] (aka BPFtrace) is discussed my earlier [DTrace for Linux 2016] post, which explains how the Linux kernel gained [eBPF]: the virtual machine that we're using to run tracing programs. bcc is powerful but laborious to program.

C++ 40

C++ Virtualization Programming Latency 40

Brendan Gregg

SEPTEMBER 5, 2017

LTS (April 2016). I wrote about it in a previous post, [DTrace for Linux 2016]. I wrote a page on it: [perf]. - **eBPF**: tracing features completed in 2016, this provides efficient programmatic tracing to existing kernel frameworks. The hardest part on Linux is now done: kernel support. It's the official profiler.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Alex Podelko

OCTOBER 13, 2016

I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. I decided to publish a few parts here to see if anything triggers a discussion. It would be published as separate posts: – Introduction (a short teaser).

Performance Testing 100

Performance Testing Testing Performance Engineering 100

Rigor

SEPTEMBER 11, 2019

Follow him on Twitter @ RickByers and be sure to watch the video of his conversation at Chrome Dev Summit 2016 , where he discussed the ways Chrome is “improving predictability for developers.” He has a keen interest in web technologies, performance tuning, security, and the practical use of technology. Paul Calvano.

Performance 89

Performance Education Google Website 89

Percona

AUGUST 27, 2018

5000 named Percona to their list in 2013, 2014, 2015 and 2016. With over 140 professionals in 30 plus countries, Peter’s venture now serves over 3000 customers – including the “who’s who” of internet giants, large enterprises and many exciting startups.

Open Source 43

Open Source Internet Internet Strategy 43

Percona

JULY 30, 2018

5000 named Percona to their list in 2013, 2014, 2015 and 2016. With over 140 professionals in 30 plus countries, Peter’s venture now serves over 3000 customers – including the “who’s who” of internet giants, large enterprises and many exciting startups.

Architecture 41

Architecture Database Open Source Internet 41

O'Reilly Software

APRIL 4, 2018

The data shape will dictate capacity planning, tuning of the backbone, and scalability analysis for individual components. In 2016, Apache Spark introduced Structured Streaming , a new streaming engine based on the SparkSQL abstractions and runtime optimizations. What message process warranty level do we require? At least once?

Architecture 80

Architecture Scalability Google Operating System 80

SQL Performance

DECEMBER 9, 2020

The upside of option 1 is that it works in all SQL Server editions and is relevant in SQL Server 2016 or later, since the batch mode Window Aggregate operator was introduced in SQL Server 2016. So, my tuning efforts ended up yielding an improvement of 43.5 The optimizer optimized it out. The challenge is on!

C++ 61

C++ Servers Testing Processing 61

SQL Server According to Bob

JUNE 9, 2016

SQL Server 2016, automatic soft NUMA avoids assignment of logical processors from the same package to the same soft NUMA node. VMWare provides options to ‘Assign a Virtual Machine to a Specific Processor’ that may be helpful in tuning your installation. Using the returned information SQL Server assigns nodes and schedulers accordingly.

Servers 40

Servers Virtualization Tuning Architecture 40

SQL Performance

SEPTEMBER 2, 2021

SQL Server 2016 brought us STRING_SPLIT , a native function that eliminates the need for many of the custom solutions we’ve needed before. STRING_SPLIT() in SQL Server 2016 : Follow-Up #1. STRING_SPLIT() in SQL Server 2016 : Follow-Up #2. He spent a lot of time fine-tuning this CLR function to efficiently parse a string.

C++ 59

C++ Servers Testing Database 59

SQL Performance

OCTOBER 29, 2019

ORDER BY ExecutionCount DESC ; Note: The sys.dm_exec_function_stats DMV was added in SQL Server 2016. CROSS APPLY sys. dm_exec_sql_text ( [ qs ] [ sql_handle ] ) AS [ st ] CROSS APPLY sys. dm_exec_query_plan ( [ qs ] [ plan_handle ] ) AS [ qp ] GROUP BY qs. query_hash , qs.

C++ 74

C++ Database Servers Tuning 74

SQL Performance

MAY 7, 2019

Understanding what these mean and how to investigate them is critical so you don’t succumb to what I call ‘knee-jerk performance tuning’ and waste time and effort trying to fix a problem that isn’t actually a problem. Remember, you still need to understand what the wait types mean once you’ve collected the metrics. Waits Resources.

Servers 40

Servers Azure Metrics Tuning 40

Tim Kadlec

JANUARY 31, 2019

Never-Slow Mode isn’t that far removed from two ideas that we had back in 2016 when Yoav Weiss and I met with the AMP team to discuss some standards-based alternatives to AMP. Thanks to Yoav Weiss and Alex Russell for helping me fine-tune some of my thoughts on this.

Tuning 76

Tuning Cache Development Performance 76

Percona

JANUARY 14, 2019

['scala','currency','println'] ? ? voting','maven'] ? ? compose','xamarin','markdown','scrum','comic'] ? ? china','sourceforge','subscription','chinese','kotlin'] ? ? systemd','gitlab','autotldr'] ? ? refugees','refugee','sanders','debates','hillary','removal','participating','removed','greece','clinton'] ? ?

Database 40

Database Analytics Blockchain Healthcare 40

Alex Russell

MARCH 31, 2022

Like every other successful platform, the web operates on a finely tuned understanding of risk and trust , and deprecations are particularly explosive. [2] Late in the drafting of this post, it was pointed out to me by Frederik Braun that Brad Hill had considered the downsides of a site-populated SRI addressable cache back in 2016.

Cache 82

Cache Government Traffic Network 82

Rigor

SEPTEMBER 3, 2019

STEP 7: Tune Your CDN Performance. For example, your team could set up waiting rooms to lessen the load, as Macy’s did when it had a failure on Black Friday 2016. While a DDoS attack could bring down your site, bots can also be used to scrape your site for vulnerabilities, to steal PII, to make fraudulent purchases, and more.

Website 74

Website Cache Ecommerce Traffic 74