Brendan Gregg

FEBRUARY 28, 2023

Titus, the Netflix container management platform, is now open source,” [link] Apr 2018 - [Cutress 19] Dr. DDR6: Here's What to Expect in RAM Modules,” [link] Nov 2020 - [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] Jul 2020 - [Spier 20] Martin Spier, Brendan Gregg, et al.,

Performance 103

Performance Latency Cache Google 103

Percona

JANUARY 17, 2019

Aurora Parallel Query response time (for queries which can not use indexes) can be 5x-10x better compared to the non-parallel fully cached operations. The second and third run used the cached data. It does not use any cache (ie: innodb buffer pool) either. This query is 100% cached. Test data and versions.

Cache 72

Cache C++ AWS Airlines 72

KeyCDN

MARCH 10, 2021

You can quickly check the response headers using Chrome DevTools or a simple curl command like the one below: curl -I [link] 200Server: keycdn-engineDate: Tue, 17 Apr 2018 18:35:44 GMTContent-Type: image/svg+xmlContent-Length: 12557Connection: keep-aliveVary: Accept-EncodingLast-Modified: Mon, 26 Sep 2016 12:15:44 GMTETag: "57e91170-310d"Expires: (..)

Latency 110

Latency Internet Internet Speed 110

John McCalpin

OCTOBER 16, 2016

“Memory Bandwidth and System Balance in HPC Systems” If you are planning to attend the SuperComputing 2016 conference in Salt Lake City next month, be sure to reserve a spot on your calendar for my talk on Wednesday afternoon (4:15pm-5:00pm).

Architecture 40

Architecture Systems Technology Technology 40

SQL Performance

SEPTEMBER 25, 2019

The general idea is to cache and replay results, saving repeated executions of inner-side operators wherever possible. When a spool is able to replay cached results, this is known as a rewind. You may find it helpful to think of a spool rebind as a cache miss, and a rewind as a cache hit. Lazy Table Spool.

Performance 104

Performance Cache Servers Education 104

SQL Server According to Bob

NOVEMBER 8, 2016

Note: We received feedback that there was some confusion on us calling this functionality “tail of the log caching” because our documentation and prior history has referred to the tail of the log as the portion of the hardened log that has not been backed up. Tail Of Log Caching. Announcement and Syntax Example: [link]. .

Cache 40

Cache Servers Media Storage 40

CSS - Tricks

APRIL 1, 2021

Compressing, minifying and caching assets. We can compress our assets, minify our styles and scripts, and cache things responsibly so we’re serving what the user needs in the most efficient way possible. KB for desktops and 902 KB for mobile devices from 2016 to 2021. The final thing we can check is caching.

Cache 94

Cache Social Media Media Website 94

Alex Russell

DECEMBER 18, 2022

Add to this the fact that desktop devices have a lifespan between five and eight years, on average, and that the P75 device was sold in 2016. That is, what was the average device in 2016? These devices feature: Eight slow, big.LITTLE ARM cores (A75+A55, or A73+A53) built on last-generation processes with very little cache.

Performance 120

Performance Mobile Network Latency 120

MachMetrics

JUNE 30, 2021

from wpostats, 2016 ). Thanks to the awesome caching plugins available for WordPress will make your site much faster and make your pages feel lightweight when configured correctly. You will still be configuring your site caching and organize the assets in such a way that the page passes web vital tests + and loads a lot quicker.

Cache 78

Cache Speed Google Website 78

SQL Performance

MAY 29, 2019

From SQL Server 2016 onward, FastLoadContext is enabled by default ; the trace flag is not required. For more background, see the Data Performance Loading Guide and the Tiger Team notes on the behaviour changes for SQL Server 2016. FastLoadContext can be disabled on SQL Server 2016 using documented trace flag 692. DETAILED'. )

Cache 64

Cache Testing Servers Code 64

SQL Performance

JUNE 5, 2019

We will execute the stored procedure will three different sets of input parameters: EXEC [ Sales ] [ usp_OrderInfo_OrderDate ] '2016-01-01' , '2016-01-08' ; GO. EXEC [ Sales ] [ usp_OrderInfo_OrderDate ] '2016-01-01' , '2016-06-30' ; GO. million rows.

Servers 41

Servers Cache Database Metrics 41

Adrian Cockcroft

JANUARY 29, 2023

I presented this analysis of response time distributions talk in 2016 — at Microxchg in Berlin ( video ). I think that the structure of the system in terms of functionality distributed across a network of lambda functions, microservices, caches, databases and external services is going to determine the number and position of each peak.

Lambda 98

Lambda Latency Cache C++ 98

Smashing Magazine

JUNE 26, 2019

Let the web developer handle all of the necessary speed optimizations like caching and file minification while you take on the following design tips and strategies: 1. Because service workers exist outside of the web browser and are not contingent on the speed of the user’s network, they load cached content for visitors more quickly.

Website 111

Website Speed Mobile Design 111

SQL Performance

MAY 16, 2019

spt_values AS SV ; Plan Caching. The DMLRequestSort property is saved as part of the cached plan. When a cached plan is reused , the value of DMLRequestSort is not recalculated at execution time, unless a recompilation occurs. One way to avoid any unexpected behaviours due to caching is to use an OPTION (RECOMPILE) hint.

Cache 67

Cache Servers Testing Storage 67

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.

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.

Servers 49

Servers Azure Hardware Database 49

Brendan Gregg

FEBRUARY 28, 2023

Titus, the Netflix container management platform, is now open source,” [link] , Apr 2018 [Cutress 19] Dr. DDR6: Here's What to Expect in RAM Modules,” [link] , Nov 2020 [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] , Jul 2020 [Spier 20] Martin Spier, Brendan Gregg, et al.,

Performance 52

Performance Latency Cache Google 52

KeyCDN

OCTOBER 24, 2018

As of 2016, there were just over 5.1 Growth Of Internet in Finland The number of Internet users in Finland correlates very closely with the current number of residents. Back in 1984, FUNET was launched to connect Finnish universities and in 2000 internet in Finland was launched commercially. penetration rate.

Internet 48

Internet Internet Speed Network 48

Alex Russell

APRIL 29, 2021

At the time of the last Confluence run, the gap had stretched to nearly 1000 APIs, doubling since 2016. An extension to Service Workers that enables browsers to present users with cached content when offline. From this data we see that iOS is the least complete and competitive implementation of the web platform, and the gap is growing.

Media 145

Media Games Education Engineering 145

Rigor

SEPTEMBER 3, 2019

Prior to any peak event, take the time to review your CDN’s cache design and offload metrics to determine what improvements can be made. Ultimately, the key to surviving a peak event is to have very good CDN cache designs. A key to surviving a peak event is to have very good #CDN cache designs.

Website 74

Website Cache Traffic Ecommerce 74

Randon ASCII

FEBRUARY 25, 2018

In September of 2016 we started noticing random failures when building Chrome – 3 out of 200 builds of Chrome failed when protoc.exe, one of the executables that is part of the build, crashed with an access violation. This was starting to look like a Windows file cache bug.

Programming 79

Programming Hardware Cache Code 79

Alex Russell

OCTOBER 22, 2017

Add onto that the yawning chasm between low-end and high-end device performance thanks to chip design factors like cache sizes, and it can be difficult to know where to set a device baseline. The true median device from 2016 sold at about ~$200 unlocked. — Monica Dinculescu (@notwaldorf) September 20, 2016.

Performance 74

Performance Network Benchmarking Mobile 74

SQL Performance

APRIL 20, 2021

A reminder of the plan ( click to enlarge ): This is the first point in the process so far that an in-flight execution plan is available (SQL Server 2016 SP1 onward) in sys.dm_exec_query_statistics_xml. Initializes the parameter cache ( CQueryExecContext::InitParamCache ). Updates the linked map of plan iterators.

C++ 98

C++ Processing Servers Cache 98

SQL Performance

JULY 16, 2019

From 2007 until 2016, Intel was able to successfully execute their Tick-Tock release strategy, where they would introduce a new processor microarchitecture roughly every two years (a Tock release). Intel has been stuck at 14nm in the server space since the Broadwell release in Q4 of 2016. So, what has changed my mind?

Servers 46

Servers Hardware Architecture Retail 46

John McCalpin

APRIL 2, 2020

This was a keynote presentation at the “2nd International Workshop on Performance Modeling: Methods and Applications” (PMMA16), June 23, 2016, Frankfurt, Germany (in conjunction with ISC16 ). Here I assumed a particular analytical function for the amount of memory traffic as a function of cache size to scale the bandwidth time.

Benchmarking 59

Benchmarking Performance Latency Architecture 59

Smashing Magazine

JANUARY 15, 2019

In 2016, O’Reilly published “ Designing For Sustainability ” by Tim Frick. I predominantly use Nginx, and I have a particular fondness for FastCGI cache and have found it to be especially efficient. A particular favorite in the WordPress space is WP Super Cache. There are some existing works we can draw on to help us here.

Website Performance 78

Website Performance Website Energy Performance 78

John McCalpin

NOVEMBER 5, 2016

In the latest (October 2016) revision of Intel’s Instruction Extensions Programming Reference , Intel has disclosed a fairly dramatic departure from these “traditional” approaches. E.g., on Haswell you can execute two loads per cycle of any size or alignment as long as neither crosses a cache-line boundary.

Cache 40

Cache C++ Latency Hardware 40

SQL Performance

AUGUST 23, 2019

The SQL Server batch mode implementation of a Bloom filter is optimized for modern CPU cache architectures and is known internally as a complex bitmap. SQL Server 2016 introduced the ability to create a bitmap for general predicates on dictionary-encoded segment data. Bitmap Choice.

Servers 75

Servers Engineering Efficiency Retail 75

Rigor

JULY 2, 2019

Because HTTP redirection is handled server-side, it is typically faster than client-side redirection, especially if the browser can cache the new location of the requested file. Originally published September 2016, updated July 2019. Using JavaScript Redirection. REQUEST A FREE TRIAL OF RIGOR.

Mobile 60

Mobile Traffic Google Latency 60

SQL Performance

APRIL 8, 2019

The L3 cache size is 64MB. The slightly newer Intel Xeon E5-26xx v4 (Broadwell) series which was introduced in Q1 of 2016, increased that to 2400MHz. The L3 cache size is 64MB. This 14nm first-generation AMD EPYC 7551 processor has 32 cores and 64 threads, and it works in one or two-socket servers. lanes for I/O connectivity.

Azure 42

Azure Virtualization Storage Benchmarking 42

CSS Wizardry

MARCH 3, 2019

To this end, having a solid caching strategy can make all the difference for your visitors. ?? How is your knowledge of caching and Cache-Control headers? That being said, more and more often in my work I see lots of opportunities being left on the table through unconsidered or even completely overlooked caching practices.

Cache 270

Cache Latency Strategy Servers 270

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. It also disables some features that are harmful to performance, such as document.write and synchronous XHR. How would browsers enable and enforce this?

Cache 76

Cache Tuning Development Performance 76

SQL Server According to Bob

JANUARY 26, 2017

At first glance in SQL Server 2016, you can see if a database is encrypted for TDE by looking at sys.databases.is_encrypted. If I enable encryption for a user database using ALTER DATABSE, you will see results like this: (Note: that sys.databases.is_encrypted only shows 1 starting in SQL Server 2016). Bob Ward.

Servers 40

Servers Database Azure Cache 40

John McCalpin

APRIL 2, 2020

This was a keynote presentation at the “2nd International Workshop on Performance Modeling: Methods and Applications” (PMMA16), June 23, 2016, Frankfurt, Germany (in conjunction with ISC16 ). Here I assumed a particular analytical function for the amount of memory traffic as a function of cache size to scale the bandwidth time.

Benchmarking 40

Benchmarking Performance Latency Architecture 40

Smashing Magazine

JANUARY 21, 2019

Native Client-Side Cache/Data Store. For instance, the returned data for each request can be added into a client-side cache containing all data requested by the user throughout the session. And just by iterating all the values under modulesettings["share-on-social-media"].modules Extensibility And Re-purposing.

Social Media 73

Social Media Database Media Website 73

The Symphonia

MAY 22, 2018

I started writing “ Serverless Architectures ” in May 2016. I was a little restricted in my thinking the first time around and I’ve come to see FaaS as something not quite stateless, since caching state in a Lambda instance that might stick around for 5 hours is a perfectly reasonable idea. I thought a few folks might be interested.

Serverless 40

Serverless Architecture Lambda Azure 40

Nick Desaulniers

NOVEMBER 20, 2016

6 15828: search cache = /etc/ld.so.cache 15828: trying file = /lib/x86_64-linux-gnu/libc.so.6 Copyright ( C ) 2016 Free Software Foundation, Inc. /tls/x86_64: /tls: /x86_64: ( LD_LIBRARY_PATH ). 15828: trying file =./tls/x86_64/libc.so.6 tls/x86_64/libc.so.6 6 1earc: trying file =./tls/libc.so.6 tls/libc.so.6 6 15828: trying file =./x86_64/libc.so.6

C++ 48

C++ Programming Code Virtualization 48