Sutter's Mill

MARCH 11, 2024

To talk about C++’s current safety problems and solutions well, I need to include the context of the broad landscape of security and safety threats facing all software. tl;dr: I don’t want C++ to limit what I can express efficiently. tl;dr: I don’t want C++ to limit what I can express efficiently. issues with C++.

C++ 139

C++ Programming Code Java 139

Sutter's Mill

MARCH 13, 2020

Yesterday morning, I announced to the committee that the next ISO WG21 (C++) meeting originally planned for June 1-6 in Varna, Bulgaria, has been postponed due to the current health situation. We all love C++, but our first priority is the health and safety of all of our experts and observers, all of our families, and of the global community.

C++ 74

C++ Government Virtualization Monitoring 74

Percona

DECEMBER 20, 2023

Modern servers operate with terabytes of RAM, and by default, processors work with virtual memory address translation for each 4KB page. OS maintains a huge list of allocated and free pages to make slow but reliable address translation from virtual to physical. Huge pages make PostgreSQL faster; can we implement it in Kubernetes?

C++ 97

C++ Virtualization Benchmarking Database 97

HammerDB

DECEMBER 5, 2020

compared to previous releases is that the workload names have changed from TPC-C and TPC-H to TPROC-C and TPROC-H respectively and therefore a key question is how are the v4.0 The simple answer is nothing, the workloads are exactly the same workloads derived from the TPC-C and TPC-H specifications and HammerDB v4.0

C++ 40

C++ Benchmarking Virtualization Open Source 40

HammerDB

JULY 15, 2021

With the default workload, each Virtual User will process 90% of its transactions against its home warehouse selected at random at the start of the test. You should create a schema large enough to allow an even, uncontended, random distribution of Virtual Users for the maximum Virtual User count you will expect to create.

C++ 52

C++ Virtualization Database Testing 52

The Morning Paper

MAY 27, 2019

CheriABI: enforcing valid pointer provenance and minimizing pointer privilege in the POSIX C run-time environment Davis et al., And this all has to work for whole-system executions, not just the C-language portion of user processes. ASPLOS’19. The protections are hardware implemented and cannot be forged in software.

C++ 61

C++ Hardware Virtualization Benchmarking 61

HammerDB

MARCH 25, 2023

Docker build, example CLI scripts were added to build and run the TPROC-C workload in the Tcl language. these were enhanced to also add Python based scripts, and to include scripts for both TPROC-C and TPROC-H and a driver script for Linux environments. With the HammerDB v4.5 In HammerDB v4.6 With HammerDB v4.7

C++ 83

C++ Virtualization Benchmarking Database 83

Sutter's Mill

DECEMBER 30, 2020

That includes for the C++ committee and many of our communities, where just this month we lost Beman Dawes. Beman was one of the most important and influential C++ experts in the world, and made his many contributions mostly behind the scenes. First, the big one… C++20 is the first ever “D&E-complete” release of C++.

C++ 76

C++ Virtualization Design Code 76

HammerDB

FEBRUARY 27, 2024

The HammerDB TPROC-C and TPROC-H workloads are derived from the TPC-C and TPC-H workloads respectively. Although the HammerDB workloads are not identical to TPC-C and TPC-H it is still important that the workloads implemented maintain the same data consistency as the official workloads.

C++ 62

C++ Database Virtualization Testing 62

Percona

MARCH 13, 2023

I prefer to test a distributed deployment where each component is placed on different servers or virtual machines, that’s why I do not put it into docker-compose. 6400'" -c "listen_http_addr='0.0.0.0:9898'" 9898'" -c "pg_distrib_dir='/opt/neondatabase-neon/pg_install'" 4.

Serverless 117

Serverless C++ Storage Latency 117

HammerDB

OCTOBER 24, 2023

by @krithikasatish and @JoshInnis to provide accelerated load performance for both SQL Server TPROC-C and TPROC-H schemas. Using BCP our TPROC-C build now completed almost 3X faster and tests on TPROC-H showed similar results. This post provides an introduction to the new feature added to HammerDB v4.9 With the default for v4.9

Servers 62

Servers C++ Benchmarking Virtualization 62

HammerDB

DECEMBER 1, 2022

Copyright (C) 2003-2022 Steve Shaw Type "help" for a list of commands Initialized new SQLite on-disk database C:/Users/Hdb/AppData/Local/Temp/hammer.DB Copyright (C) 2003-2022 Steve Shaw Type "help" for a list of commands Initialized new SQLite on-disk database C:/Users/Hdb/AppData/Local/Temp/hammer.DB HammerDB CLI v4.6

Virtualization 57

Virtualization C++ Storage Database 57

HammerDB

OCTOBER 17, 2018

The official TPC-C test has a fixed number of users per warehouse and uses keying and thinking time so that the workload generated by each user is not intensive. By default each virtual user has the concept of a home warehouses where approximately 75% of its workload will take place.

C++ 40

C++ Testing Virtualization Cache 40

Percona

JUNE 5, 2023

Then, you can apply the code using this docker command on a server running the PMM Docker container (as root or using sudo): docker exec -it pmm-server bash -c 'curl -fsSL [link] | /bin/bash' If you are running PMM via a virtual appliance (OVF or AMI), use SSH to shell into the PMM server and run this command, as root or using sudo: curl -fsSL [link] (..)

Internet 88

Internet Internet C++ Virtualization 88

HammerDB

NOVEMBER 30, 2022

Copyright (C) 2003-2022 Steve Shaw. Copyright (C) 2003-2022 Steve Shaw. Vuser 1:1 Active Virtual Users configured Vuser 1:TEST RESULT : System achieved 39945 NOPM from 92893 SQL Server TPM Vuser 1:Gathering timing data from Active Virtual Users. /hammerdbcli py HammerDB CLI v4.6. Type "help()" for a list of commands.

Virtualization 44

Virtualization C++ Lambda Monitoring 44

HammerDB

JUNE 22, 2023

Copyright (C) 2003-2023 Steve Shaw Type "help" for a list of commands Initialized new Jobs on-disk database /opt/HammerDB-4.8/DATA/hammer.db On Windows it will look for TEMP, TMP, TMPDIR or finally C: for example, on Linux. In this example, we will run a PostgreSQL TPROC-C autopilot workload to generate some jobs to analyse.

Benchmarking 57

Benchmarking C++ Virtualization Database 57

Percona

DECEMBER 23, 2022

The use case is the TPC-C benchmark but executed not on a high-end server but on a lower-spec virtual machine that is I/O limited like for example, with AWS EBS volumes. I decided to use a virtual machine with two CPU cores, four GB of memory, and storage limited to a maximum of 1000 IOPs of 16KB. TPC-C on MyRocks.

Storage 56

Storage Cache C++ Virtualization 56

HammerDB

NOVEMBER 23, 2021

dbset db pg dbset bm TPC-C diset tpcc pg_count_ware 20 diset tpcc pg_num_vu 4 diset tpcc pg_superuser postgres diset tpcc pg_superuserpass postgres buildschema. Running in the web service CLI we can see that the command output is returned to the user, however the virtual user output is no longer returned and instead a jobid is given.

Virtualization 70

Virtualization Benchmarking C++ Database 70

Percona

JUNE 20, 2023

In order to understand “segmentation fault,” it is a must to know the basic idea of segmentation and its implementation in C programming. In order to overcome these issues, the concept of paging and segmentation was introduced, where physical address space and virtual address space were designed. 0ubuntu1~20.04.1)

Programming 82

Programming C++ Database Virtualization 82

Brendan Gregg

JANUARY 1, 2019

eBPF should stand for something meaningful, like Virtual Kernel Instruction Set (VKIS), but due to its origins it is extended Berkeley Packet Filter. So instead of a static HTML website, JavaScript lets you define mini programs that run on events like mouse clicks, which are run in a safe virtual machine in the browser.

C++ 111

C++ Virtualization Programming Code 111

Sutter's Mill

OCTOBER 28, 2011

As I’m getting ready to resume writing a few new (or updated) Guru of the Week Items for the C++11 era, I’ve been looking through the wonderful features of C++11 and analyzing just which ones will affect the baseline style of how I write modern C++ code, both for myself and for publication.

C++ 40

C++ Virtualization Code Design 40

HammerDB

MAY 10, 2021

The replicas are defined in steps.xml in the config directory to determine how many virtual users each replica will configure, how soon after the previous instance has started the replica should start and how long it will run for. <steps> Note that it is expected for Virtual User 1 of the replicas to end immediately with the message.

Virtualization 52

Virtualization C++ Database Monitoring 52

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 62

Benchmarking Database Network C++ 62

HammerDB

JULY 14, 2021

adds full support for MariaDB in both the GUI as shown: And in the CLI as a separate database from MySQL, this post describes a setup and test for MariaDB using the CLI on Linux as an example running the TPROC-C workload. dbset db maria dbset bm TPC-C diset connection maria_socket /tmp/mariadb10234.sock HammerDB v4.2 linux-x86_64.tar.gz

Testing 57

Testing C++ Virtualization Tuning 57

Dynatrace

MARCH 17, 2021

IAST only works with languages that have a virtual runtime environment, such as Java, C#, Python, and Node.js. Interactive (IAST) : IAST combines SAST and DAST together and improves on them by instrumenting applications to support deeper vulnerability analysis beyond exposed surfaces.

Open Source 172

Open Source Cloud Games Java 172

Percona

OCTOBER 3, 2023

By default, the majority of widely used Linux distributions employ a virtual memory page size of 4KB. In order to understand THP, we should first start with a brief description of Linux HugePages. The concept of HugePages in Linux has existed for many years, first introduced in 2007.

Database 87

Database Servers Open Source C++ 87

HammerDB

APRIL 27, 2021

In the example below we have modified the SQL Server, number of warehouses to build and the virtual users to build them. We have set the connection value of mssqls_server and then the tpcc value of the warehouse count and the number of virtual users to build them. GUI Virtual User Options. CLI Virtual User Options.

Virtualization 73

Virtualization Benchmarking Database Operating System 73

Testlodge

APRIL 14, 2021

Suppose that your organization has developed an enterprise-level desktop application using C# language, which has a three-tier architecture based on.NET framework. Once the build has been released, it is recommended that virtual machines are utilized for testing. An Example.

Testing 89

Testing Hardware Virtualization Operating System 89

HammerDB

JULY 8, 2019

Copyright (C) 2003-2019 Steve Shaw Type "help" for a list of commands The xml is well-formed, applying configuration Initialized new SQLite in-memory database Starting HammerDB Web Service on port 8080 Listening for HTTP requests on TCP port 8080. see the documentation for setting the port). . $./hammerdbws hammerdbws HammerDB Web Service v3.2

Benchmarking 40

Benchmarking Virtualization C++ Database 40

HammerDB

MAY 7, 2021

When we run the script we have now activated the transaction counter to run throughout the test. Vuser 1:Timing test period of 2 in minutes 228408 MSSQLServer tpm Timer: 1 minutes elapsed 267666 MSSQLServer tpm 248466 MSSQLServer tpm 283332 MSSQLServer tpm 270900 MSSQLServer tpm 242988 MSSQLServer tpm Vuser 1:1.,

Virtualization 57

Virtualization C++ Testing Database 57

Adrian Cockcroft

FEBRUARY 9, 2023

The virtualization and networking platform could be datacenter based, with something like VMware, or cloud based using one of the cloud providers such as AWS EC2. The next layer is defined by the languages you want to use, Java, Python, Go, , Javascript, Rust etc, and the ecosystem of library functions you bought from a vendor or downloaded.

Engineering 137

Engineering Serverless Lambda AWS 137

HammerDB

APRIL 19, 2023

Regardless of whether the computing platform to be evaluated is on-prem, containerized, virtualized, or in the cloud, it is crucial to consider several essential factors. Each HammerDB virtual user is assigned a “home warehouse” at the start of the workload and which remains fixed. and 8.0.32 HammerDB 4.5 to 8.0.32.

Performance 54

Performance Benchmarking Cache Storage 54

HammerDB

NOVEMBER 22, 2021

usr/bin/install -c -m 644./pg_stat_statements--1.4.sql./pg_stat_statements--1.8--1.9.sql./pg_stat_statements--1.7--1.8.sql./pg_stat_statements--1.6--1.7.sql./pg_stat_statements--1.5--1.6.sql./pg_stat_statements--1.4--1.5.sql. include/internal -D_GNU_SOURCE -c -o pgsentinel.o /src/port -L././src/common lib',--enable-new-dtags -lm./postgresql-14.1/contrib/pg_stat_statements$

Metrics 62

Metrics Benchmarking C++ Database 62

Sutter's Mill

AUGUST 13, 2023

Thanks again to C++ Now for inviting me to speak this year in glorious Aspen, Colorado, USA! The talk I gave there was just posted on YouTube, you can find it here: At CppCon 2022, I argued for why we should try to make C++ 10x simpler and safer , and I presented my own incomplete experimental compiler, cppfront.

C++ 89

C++ Efficiency Design Virtualization 89

Dynatrace

DECEMBER 15, 2020

Resolved issue with deep monitoring of Go process because of incompatible ABI (added support for monitoring Go applications containing C code that uses TLS). Citrix Profile Management now correctly indicated as Citrix Common technology, instead of Citrix Virtual Delivery Agent (VDA). ONE-42283). ONE-49694). ONE-45777). APM-269331).

Operating System 109

Operating System Java Mobile Cache 109

Brendan Gregg

DECEMBER 31, 2018

eBPF should stand for something meaningful, like Virtual Kernel Instruction Set (VKIS), but due to its origins it is extended Berkeley Packet Filter. So instead of a static HTML website, JavaScript lets you define mini programs that run on events like mouse clicks, which are run in a safe virtual machine in the browser.

C++ 52

C++ Virtualization Programming Code 52

Sutter's Mill

FEBRUARY 23, 2020

This post is an attempt to shed light on this situation, and perhaps reduce some of the time spent on unresolved ongoing design debates in the C++ community. References What references are and how to use them In C++, a C& or C&& reference is an indirect way to refer to an existing object. That’s it.

C++ 75

C++ Lambda Games Design 75