Percona

MAY 2, 2023

The speed of backup also depends on allocated IOPS and type of storage since lots of read/writes would be happening during this process. Back up anywhere – to the cloud (use any S3-compatible storage) or on-premise with a locally-mounted remote file system It allows you to choose which compression algorithms to use.

Best Practices 52

Best Practices Database Storage Servers 52

The Morning Paper

DECEMBER 8, 2019

Traditionally one of the major costs when moving data in and out of memory (be it to persistent media or over the network) is serialisation. The Twizzler KVS (key-value store) is just 250 lines of C code, and uses one persistent object for the index structure, and a second one for the data. The FOT structure has some pros and cons.

Hardware 56

Hardware Programming Media Storage 56

Smashing Magazine

JANUARY 11, 2021

Networking, HTTP/2, HTTP/3 OCSP stapling, EV/DV certificates, packaging, IPv6, QUIC, HTTP/3. Alternatively, you can also use: Addy Osmani’s Chrome UX Report Compare Tool , Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing). 300ms RTT, 1.6

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 7, 2019

To get a good first impression of how your competitors perform, you can use Chrome UX Report ( CrUX , a ready-made RUM data set, video introduction by Ilya Grigorik), Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing). 150ms RTT, 1.5 Mbps down, 0.7

Performance 103

Performance Cache Metrics Network 103

Smashing Magazine

JANUARY 6, 2020

Alternatively, you can also use Speed Scorecard (also provides a revenue impact estimator), Real User Experience Test Comparison or SiteSpeed CI (based on synthetic testing). Paddy Ganti’s script constructs two URLs (one normal and one blocking the ads), prompts the generation of a video comparison via WebPageTest and reports a delta.

Performance 145

Performance Cache Network Metrics 145

Brendan Gregg

SEPTEMBER 5, 2017

Hit Ctrl-C to end. ^C C operation = 'read' usecs : count distribution 0 -> 1 : 0 | | 2 -> 3 : 0 | | 4 -> 7 : 4479 | *| 8 -> 15 : 1028 | | 16 -> 31 : 14 | | 32 -> 63 : 1 | | [.]. At my employer we sometimes use SR-IOV for direct network interface access, and NVMe for direct disk access. Tracing ZFS operation latency.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Highly Scalable

MAY 1, 2012

Frequencies of 100 most frequent elements can be estimated with 4% precision using Count-Min Sketch structure that uses about 48KB (12k integer counters, based on the experimental result), assuming that data is skewed in accordance with Zipfian distribution that models well natural texts, many types of web events and network traffic.

Analytics 191

Analytics Traffic Big Data Efficiency 191

O'Reilly

SEPTEMBER 19, 2023

It progressed from “raw compute and storage” to “reimplementing key services in push-button fashion” to “becoming the backbone of AI work”—all under the umbrella of “renting time and storage on someone else’s computers.” ” (It will be easier to fit in the overhead storage.)

Hardware 99

Hardware Storage Big Data Blockchain 99

SQL Server According to Bob

JANUARY 11, 2020

Character POS ASCII Value Formula Value A 1 65 67 C 2 67 69 Checksum 136 Comparing ​​ the checksum values indicates ​​ that the values do not match and ​​ damage ​​ has occurred to the data.

Servers 40

Servers Cache Database Media 40

O'Reilly

MAY 19, 2020

However, a notable minority—some 15%—occupy C-level or executive roles. network engineer, at >2%) and management positions (IT manager, at close to 3%; operations manager at >1%). A comparison of respondent organization size and share of applications hosted in the cloud.

Cloud 141

Cloud Serverless AWS Architecture 141