Brendan Gregg

JULY 4, 2021

This was a chance to talk about other things I've been working on, such as the present and future of hardware performance. The video is on [youtube]: The slides are [here] or as a [PDF]: first prev next last / permalink/zoom I work on many areas of performance, but recently I've had a lot of demand to talk about BPF.

Performance 52

Performance Latency Hardware Storage 52

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). But I'm not completely sure.

Speed 126

Speed Java AWS Virtualization 126

SQL Server According to Bob

DECEMBER 18, 2018

Durability is a cornerstone of any database system and starting with SQL Server 2017 on Linux Cumulative Update 6 (CU6), SQL Server on Linux enables “Forced Flush” behavior as described in this article , improving durability on non-Fua optimized systems. “Be Linux may need similar utilities to control various hardware cache installations.

Servers 90

Servers Media Cache Storage 90

SQL Performance

AUGUST 27, 2019

It will also use less power than a two-socket Intel server, with a lower hardware cost, and potentially lower licensing costs (for things like VMware). TPC-H Benchmark Results with SQL Server 2017. TPC-E Benchmark Results with SQL Server 2017. Better security , with Secure Memory Encryption and Secure Encrypted Virtualization.

Servers 52

Servers Benchmarking Virtualization Architecture 52

Percona

JULY 7, 2023

HA in PostgreSQL databases delivers virtually continuous availability, fault tolerance, and disaster recovery. Also, in general terms, a high availability PostgreSQL solution must cover four key areas: Infrastructure: This is the physical or virtual hardware database systems rely on to run. there cannot be high availability.

Availability 84

Availability Open Source Architecture Database 84

Percona

SEPTEMBER 1, 2023

This blog was originally published in October 2017 and was updated in September 2023. Vertical scaling is also often discussed, which involves increasing the resources of a single server, which can have limitations in hardware capabilities and become costly as demands grow. An example is running MongoDB on Mesos.

Best Practices 72

Best Practices Traffic Database Servers 72

Brendan Gregg

SEPTEMBER 25, 2021

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. Note that Ubuntu also has a frame to show entry into vDSO (virtual dynamic shared object). But I'm not completely sure.

Speed 40

Speed Java AWS Virtualization 40

Percona

AUGUST 15, 2023

This blog was originally published in February 2017 and was updated in August 2023. It’s a rather new plugin build for virtual synchronous replication. wsrep patches / Galera Library This solution is virtually synchronous, which is comparable to Group Replication. and was GA’ed in MySQL 5.7.17.

Servers 52

Servers Database Availability Traffic 52

ACM Sigarch

FEBRUARY 23, 2018

Richard Thaler won the 2017 Nobel prize in Economics for his work on Behavioral Economics. Virtualization, for instance, was being addressed by IBM in the 1960s. Both virtualization and power burst onto the architecture community seemingly out of nowhere even though there was a clear historical basis and trend for both.

Architecture 47

Architecture Cache Hardware Virtualization 47

Alex Russell

APRIL 29, 2021

WebGL 2 launched for other platforms on Chrome and Firefox in 2017. Now in development in WebKit after years of radio silence, WebXR APIs provide Augmented Reality and Virtual Reality input and scene information to web applications. is access to hardware devices. The underlying graphics capabilities from OpenGL ES 3.0

Media 145

Media Games Education Engineering 145

Brendan Gregg

AUGUST 8, 2017

They are demand on the system, albeit for software resources rather than hardware resources. ## Decomposing Linux load averages Can the Linux load average value be fully decomposed into components? Yes, I'd say so. Those threads are in the middle of doing work, and happen to block on a lock. They aren't idle. 3 tar termb$ iostat -x 60. [.]

Latency 111

Latency Metrics C++ Systems 111