Percona

AUGUST 18, 2023

The original motivation for FB was due to different hardware generations, especially between regions/data centers. 10) starting as process 20477 2023-07-10T05:26:52.094196Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed. AFAIK Facebook does this. root@ip-172-31-128-38 share]# cat /usr/lib/systemd/system/mysqld@.service

Programming 85

Programming Servers Database Hardware 85

Brendan Gregg

NOVEMBER 29, 2017

Hardware virtualization for cloud computing has come a long way, improving performance using technologies such as VT-x, SR-IOV, VT-d, NVMe, and APICv. The latest AWS hypervisor, Nitro, uses everything to provide a new hardware-assisted hypervisor that is easy to use and has near bare-metal performance. I'd expect between 0.1%

Virtualization 111

Virtualization AWS Hardware Storage 111

SQL Performance

JUNE 21, 2019

Prior to SQL Server 2012, the maximum server memory value only applied to the bufferpool, so customers needed to limit the amount of memory the bufferpool could use to save memory for the operating system and other processes. Part of that process is his Index Optimize procedure, which can take additional parameters to update statistics.

Servers 49

Servers Azure Hardware Database 49

The Morning Paper

MAY 21, 2019

” This paper describes a “far memory” system that has been in production deployment at Google since 2016. Using zswap means that no new hardware solutions are required, enabling rapid deployment across clusters. The far memory system has been deployed in production since 2016. Evaluation.

Software 78

Software Software Google Hardware 78

Brendan Gregg

FEBRUARY 28, 2023

Make sure your system can handle next-generation DRAM,” [link] , Nov 2011 [Hruska 12] Joel Hruska, “The future of CPU scaling: Exploring options on the cutting edge,” [link] , Feb 2012 [Gregg 13] Brendan Gregg, “Blazing Performance with Flame Graphs,” [link] , 2013 [Shimpi 13] Anand Lal Shimpi, “Seagate to Ship 5TB HDD in 2014 using Shingled Magnetic (..)

Performance 52

Performance Latency Cache Virtualization 52

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. System’s configuration is not given anymore and often can’t be easily mapped to hardware. – Cloud. – Agile. – Continuous Integration.

Performance Testing 100

Performance Testing Architecture Testing Performance 100

Alex Russell

FEBRUARY 21, 2023

is astonishingly dense with delayed features, inadvertantly emphasising just how far behind WebKit has remained for many years and how effective the Blink Launch Process has been in allowing Chromium to ship responsibly while consensus was witheld in standards by Apple. Regardless, Safari 16.4 31st : Web Share changes Feb.

Energy 79

Energy Games Engineering Design 79

Smashing Magazine

OCTOBER 27, 2021

Nowadays, hardware and software are designed to conduct eye-tracking studies for marketing , UX , psychological and medical research , gaming , and several other use cases. However, the price of eye-tracking used to be much higher than heatmaps, as measuring users’ gaze required special hardware to be used in-lab. Online Shopping.

Mobile 112

Mobile Website Hardware Social Media 112

The Agile Manager

FEBRUARY 29, 2020

RIM exited the handset business in 2016. Being less bad might satiate your most loyal of customers, it might improve your production processes around the margins, but it won't yield a transformative outcome. RIM initially doubled down on their core product, but eventually scotched their proprietary OS in favor of Android.

Artificial Intelligence 52

Artificial Intelligence Social Media Automotive Mobile 52

Brendan Gregg

SEPTEMBER 5, 2017

LTS (April 2016). There's also a ZFS send/recv code path that should try to use the TASK_INTERRUPTIBLE flag (as suggested by a coworker), to avoid a kernel hang (can't kill -9 the process). I wrote about it in a previous post, [DTrace for Linux 2016]. Both of those should be easy fixes. It's the official profiler.

Virtualization 76

Virtualization AWS Engineering Hardware 76

O'Reilly Software

APRIL 4, 2018

We live in the era of the connected experience, where our daily interactions with the world can be digitized, collected, processed, and analyzed to generate valuable insights. Accumulating all this data to process overnight is not an option anymore. Do we need to process each record individually? Process tolerance.

Architecture 80

Architecture Scalability Google Operating System 80

Brendan Gregg

NOVEMBER 28, 2017

Hardware virtualization for cloud computing has come a long way, improving performance using technologies such as VT-x, SR-IOV, VT-d, NVMe, and APICv. The latest AWS hypervisor, Nitro, uses everything to provide a new hardware-assisted hypervisor that is easy to use and has near bare-metal performance. I'd expect between 0.1%

Virtualization 40

Virtualization AWS Hardware Storage 40

Alex Russell

APRIL 29, 2021

At the time of the last Confluence run, the gap had stretched to nearly 1000 APIs, doubling since 2016. Helps media apps on the web save battery when doing video processing. Coordination APIs allow applications to save memory and processing power (albeit, most often in desktop and tablet form-factors). Compression Streams.

Media 145

Media Games Education Engineering 145

Randon ASCII

FEBRUARY 25, 2018

In this particular investigation, which spanned twenty months, we suspected hardware failure, compiler bugs, linker bugs, and other possibilities. Jumping too quickly to blaming hardware or build tools is a classic mistake, but in this case the mistake was that we weren’t thinking big enough. 9658 errors : @$ip (00408000-00415815).

Programming 79

Programming Hardware Cache Code 79

Alex Russell

OCTOBER 22, 2017

Answering it requires an understanding of how browsers process resources (which differs by type) and the concept of the critical path. This input processing happens on document’s main thread , where JavaScript runs. Processing input (including scrolling w/ active touch listeners). ” A good question!

Performance 68

Performance Benchmarking Network Mobile 68

Smashing Magazine

JANUARY 15, 2019

how much data does the browser have to download to display your website) and resource usage of the hardware serving and receiving the website. For the more adventurous/technical, the top (table of processes) command provides similar metrics on most Unix-like operating systems such as macOS and Ubuntu. These include data transfer (i.e.

Website Performance 73

Website Performance Website Energy Performance 73

SQL Server According to Bob

DECEMBER 18, 2018

The data storage always uses the multi-step flush process. Linux may need similar utilities to control various hardware cache installations. You should always validate the Fua capabilities with your device and hardware vendor. Fua = Forced Unit Access. Fua has been a long-standing part of the SCSI specifications. Device Flush.

Servers 90

Servers Media Cache Storage 90