Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). As (C) looked like a kernel rebuild, I started with (D) and (E). ## 5. I also rewrote this in C and called gettimeofday(2) directly: $ cat gettimeofdaybench.c.

Speed 103

Speed Java AWS Virtualization 103

Percona

OCTOBER 3, 2018

This is simple if you use a LEFT JOIN and an IS NULL comparison over the second table in the WHERE clause, but what if the column could be null? from -> sbtest1 a left join -> sbtest2 b using (k,c,pad) -> where b.id from -> sbtest2 a left join -> sbtest1 b using (k,c,pad) -> where b.id

C++ 65

C++ Virtualization Performance Processing 65

HammerDB

JUNE 27, 2022

An important concept was to simulate database users called Virtual Users in parallel (rather than concurrently) to accurately simulate a real database workload with multiple users running from separate systems. In addition to the TPC-C specification for OLTP workloads, the TPC has also developed the TPC-E specification.

Benchmarking 63

Benchmarking Open Source C++ Cache 63

O'Reilly

MAY 19, 2020

However, a notable minority—some 15%—occupy C-level or executive roles. It encompasses private clouds, the IaaS cloud—also host to virtual private clouds (VPC)—and the PaaS and SaaS clouds. A comparison of respondent organization size and share of applications hosted in the cloud. It is a product of a pre-pandemic sensibility.

Cloud 144

Cloud Serverless AWS DevOps 144

HammerDB

JULY 16, 2021

with the TPROC-C workload on a system with 2 sockets of Intel Xeon 8280L that means we have 28 cores per socket, with 56 physical CPUs and 112 logical CPUs with Hyper-Threading. Then we can run an interactive workload for a single Virtual User as follows for MySQL 8.0.25./hammerdbcli In this example, we will compare MySQL 5.7.33

Virtualization 58

Virtualization Performance C++ Database 58

SQL Performance

AUGUST 2, 2019

installed on my virtual machine, which has 8GB of memory (max server memory set to 6 GB) and 4 vCPUs. OrderID , c. Customers c ON o. CustomerID = c. OrderID , c. OrderID , c. Customers c ON o. CustomerID = c. OrderID , c. OrderID , c. Customers c ON o. CustomerID c.

Servers 95

Servers C++ Testing Systems 95

SQL Performance

APRIL 14, 2021

The main difference between the previous solution and this one is that as the base unit, the former uses a virtual table-value constructor and the latter uses an actual table with a columnstore index, giving you batch processing “for free.” b FROM L1 AS A CROSS JOIN L1 AS B CROSS JOIN L1 AS C ) INSERT INTO dbo. ( SELECT.

Servers 112

Servers C++ Testing Code 112

O'Reilly

SEPTEMBER 15, 2021

A small number (5%) reported their preferred pronoun as “they” or Other, but this sample was too small to draw any significant comparisons about compensation. As Figure 3 shows, the percentage of men and women respondents who saw no change was virtually identical (18%). Correspondingly, more men saw their salaries increase.

Azure 145

Azure Programming AWS Social Media 145

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

Nick Desaulniers

MAY 25, 2015

The other programs that might be compiled are C, C++, and to some extent Java and C#. In this post, I hope to show how similar by comparing the code for an interpreter, a compiler, and a JIT compiler for the language Brainfuck in around 100 lines of C code each. All of the code in the post is up on GitHub.

C++ 73

C++ Programming Code Architecture 73

HammerDB

OCTOBER 23, 2023

HammerDB has always used stored procedures as a design decision because the original benchmark was implemented as close as possible to the example workload in the TPC-C specification that uses stored procedures. Additionally, reviewing official TPC-C full disclosure reports highlighted that all vendors also use stored procedures.

Benchmarking 63

Benchmarking Database Network C++ 63

Enprowess

MAY 24, 2022

More incredible Speed with Virtual DOM. Reactjs can help your business in web and mobile application development by bringing fast speed using the virtual DOM. Virtual DOM of React refreshes only parts of the page, so it is faster than the conventional full refresh model. React vs React Native: Head to Head Comparison.

Mobile 52

Mobile Open Source Virtualization Speed 52

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). As (C) looked like a kernel rebuild, I started with (D) and (E). I also rewrote this in C and called gettimeofday(2) directly: $ cat gettimeofdaybench.c

Speed 52

Speed Java AWS Virtualization 52

The Morning Paper

DECEMBER 8, 2019

Traditional pointers address a memory location (often virtual of course). 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. At least, the nature of pointers that we want to make persistent. The FOT structure has some pros and cons.

Hardware 56

Hardware Programming Media Storage 56

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 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 | | [.]. Oracle have a similar useful page as well: the Linux to Oracle Solaris 11 comparison, as well as a [procedure] for migrating from Solaris to Linux.

Virtualization 75

Virtualization AWS Engineering Hardware 75

Testsigma

JUNE 26, 2021

This codeless automation testing tool allows building test cases virtually via design flow charts. Ranorex Studio : Ranorex Studio is a codeless test automation tool that supports tech stacks such as.NET, C#, HTML5, Java, etc. Parallel test execution: You can run tests parallelly on physical servers, virtual servers, or Selenium grids.

Testing Tools 52

Testing Tools Testing Analytics Mobile 52

Brendan Gregg

OCTOBER 7, 2018

more capable, and built from the ground up for the modern era of the eBPF virtual machine. eBPF was created by Alexei Starovoitov while at PLUMgrid (he's now at Facebook) as a generic in-kernel virtual machine, with software defined networks as the primary use case. It's shaping up to be a DTrace version 2.0: Attaching 2 probes. ^C

C++ 40

C++ Virtualization Programming Latency 40

Testsigma

JULY 31, 2021

It can be easily integrated with a range of DevOps tools, and it supports tech stacks such as.NET, C#, HTML5, Java, etc. You can run tests simultaneously on physical servers, virtual servers, or Selenium grids. You can run tests simultaneously on physical servers, virtual servers, or Selenium grids. Source: Ranorex. Highlights.

Testing 52

Testing Testing Tools Analytics Java 52

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). As (C) looked like a kernel rebuild, I started with (D) and (E). ## 6. I also rewrote this in C and called gettimeofday(2) directly: $ cat gettimeofdaybench.c

Speed 40

Speed Java AWS Virtualization 40

Testsigma

JUNE 15, 2021

It supports tech stacks such as.NET, C#, HTML5, Java, etc. Tests can be run parallelly on physical or virtual servers, or Selenium grids. For UI testing, it comes with an in-built image comparison feature that helps you identify errors quickly. Sign up Now. Picture Credit: Ranorex Studio. It supports keyword-driven testing.

Testing 52

Testing DevOps Mobile Testing Tools 52

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. This often happens out of an ad-hoc virtual team that forms in earlier stages but is now formalised and has long-term staffing.

Performance 99

Performance Latency Metrics Engineering 99

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 ! PgBouncer provides a virtual database that reports various useful statistics. Forced pgbench to create a new connection for each transaction using the -C option.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

Brendan Gregg

AUGUST 8, 2017

TABLE OF EXP(-T/C) FOR T = 5 SEC. EXPFF: EXP 0.920043902 ;C = 1 MIN EXP 0.983471344 ;C = 5 MIN EXP 0.994459811 ;C = 15 MIN. rc5-virtual (bgregg-xenial-bpf-i-0b7296777a2585be1) 08/01/2017 _x86_64_ (8 CPU) 10:15:51 PM UID PID %usr %system %guest %CPU CPU Command 10:16:51 PM 0 18468 2.85 3 tar termb$ iostat -x 60. [.]

Latency 111

Latency Metrics C++ Systems 111

Smashing Magazine

AUGUST 26, 2021

A bookshop makes for a decent real-world comparison point for an online publication. If you host your e-commerce pages on a virtual strip mall owned by a company that also runs its own online shopping business, how long will it be before they use what they learn from your customers to outcompete you? Jump to table of contents ?.

Social Media 143

Social Media Technology Technology Website 143

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. ​​ The following table outlines the virtual protection states.

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). Also check DNS Performance comparison and Cloud Peformance Comparison. Large preview ). Large preview ).

Performance 145

Performance Cache Media Metrics 145

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. You will notice a do-while loop that is linear to the virtual memory area.

Latency 214

Latency Virtualization Traffic Processing 214