The Morning Paper

AUGUST 29, 2019

use the TPC-H benchmark to assess Redshift, Redshift Spectrum, Athena, Presto, Hive, and Vertica to find out what works best and the trade-offs involved. The experimental results focus on six main areas of comparison: query restrictions system initialisation time query performance cost data compatibility with other systems scalability.

Architecture 76

Architecture Cloud Storage Serverless 76

HammerDB

DECEMBER 9, 2020

is the refactoring of the stored procedures for some of the TPROC-C workloads. The TPROC-C workload is derived from the TPC-C workload , the primary metric for TPC-C is called tpmC, the number of new order transactions processed per minute. Another key feature introduced with HammerDB v4.0 Therefore results from v4.0

C++ 52

C++ Benchmarking Metrics Database 52

Brendan Gregg

SEPTEMBER 25, 2021

As (C) looked like a kernel rebuild, I started with (D) and (E). As I'm interested in the relative comparison I can just compare the total runtimes (the "real" time) for the same result. I also rewrote this in C and called gettimeofday(2) directly: $ cat gettimeofdaybench.c Try changing the kernel clocksource.

Speed 52

Speed Java AWS Virtualization 52

HammerDB

OCTOBER 12, 2018

This post complements the previous best practice guides this time with the focus on MySQL and MariaDB and achieving top levels of performance with the HammerDB MySQL TPC-C test. SELECT DISTINCT c from sbtest where id between ? order by c. SELECT c from sbtest where id=? Copyright (C) 2003-2018 Steve Shaw.

Best Practices 40

Best Practices Scalability Performance C++ 40

Brendan Gregg

SEPTEMBER 25, 2021

As (C) looked like a kernel rebuild, I started with (D) and (E). ## 6. As I'm interested in the relative comparison I can just compare the total runtimes (the "real" time) for the same result. I also rewrote this in C and called gettimeofday(2) directly: $ cat gettimeofdaybench.c Try changing the kernel clocksource.

Speed 40

Speed Java AWS Virtualization 40

Alex Russell

MAY 9, 2022

This blindspot usually extends up to the C-suite. Treating data as a distribution fundamentally enables comparison and experimentation because it creates a language for describing non-binary shifts. Management Attributes #.

Performance 99

Performance Latency Metrics Engineering 99

John McCalpin

JANUARY 22, 2018

Pointer arithmetic, loop index increments, loop trip count comparisons, and conditional branches are all essentially “free” on mainstream Xeon processors, but have to be considered very carefully on the Xeon Phi x200. 8.056 0.056 75.0% 74.48% 0.70% 2 24 3 27 13.5 7.086 0.086 85.71% 84.67% 1.22% 4 48 3 51 12.75 FMAs/cycle.

Latency 40

Latency Hardware Code Testing 40

John McCalpin

JANUARY 22, 2018

Pointer arithmetic, loop index increments, loop trip count comparisons, and conditional branches are all essentially “free” on mainstream Xeon processors, but have to be considered very carefully on the Xeon Phi x200. A “best case” scenario: DGEMM. 1 12 3 15 15 15.0156 8.0 8.056 0.056 75.0% 74.48% 0.70%. 2 24 3 27 13.5

Latency 40

Latency Hardware Code Testing 40

Scalegrid

JULY 29, 2020

In our final post, we will put them head-to-head in a detailed feature comparison and compare the results of PgBouncer vs. Pgpool-II performance for your PostgreSQL hosting ! All of the PostgreSQL benchmark tests were run under the following conditions: Initialized pgbench using a scale factor of 100. Throughput Benchmark.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

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. c om/sql / AlwaysOn ).

Servers 40

Servers Cache Database Media 40

Smashing Magazine

JANUARY 11, 2021

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). Geekbench CPU performance benchmarks for the highest selling smartphones globally in 2019. compared to early 2015.

Performance 145

Performance Cache Metrics Media 145

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 112

Performance Cache Servers Network 112

The Netflix TechBlog

OCTOBER 14, 2024

Upon closely examining the user’s Notebook, we noticed a library called pystan , which provides Python bindings to a native C++ library called stan, looked suspicious. In comparison, the terminal handler used only 0.47% CPU time. Naturally, you would think that there must be something wrong with the code running in it.

Latency 214

Latency Virtualization Traffic Processing 214