article thumbnail

Save Money in AWS RDS: Don’t Trust the Defaults

Percona

The innodb_io_capacity_max parameter was set to 2000, so the hardware should be able to deliver that many IOPS without major issues. Results in CloudWatch show we were right: The reduction during the last couple of weeks is more than 50% of IOPS, which is pretty decent now, and we haven’t changed the hardware at all.

AWS 117
article thumbnail

A thorough introduction to bpftrace

Brendan Gregg

For example, iostat(1), or a monitoring agent, may tell you your average disk latency, but not the distribution of this latency. For smaller environments, it can be of more use helping eliminate latency outliers. hardware Hardware counter-based instrumentation. Block I/O latency as a histogram.

Latency 68
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Trending Sources

article thumbnail

SQL Server I/O Basics Chapter #1

SQL Server According to Bob

Books Online (BOL) References: ​​ All BOL references cited in this paper are taken from the Microsoft SQL Server 2000 Books Online site (updated to include SP3 functionality), which can be found at: [link] Click the Product Documentation link. Then follow the instructions to either download the BOL or browse online.

Servers 40
article thumbnail

SQL Server I/O Basics Chapter #2

SQL Server According to Bob

The ​​ SQL Server 2000 I/O Basics ​​ document is a prerequisite to ​​ the information contained in this ​​ document. and ​​ 2000. SQL Server 2000, and SQL Server 2005. SQL Server 6. However, as explained above, the SQL Server 6.

Servers 40
article thumbnail

Platform Adjacency Theory

Alex Russell

In each quantum of time, hardware and OS vendors press ahead, adding features. As OS and hardware deployed base integrate these components, the set of what most computers can do is expanded. This is often determined by hardware integration and device replacement rates. Other use-cases weren't addressable with early 2000's tech.

article thumbnail

Progress Delayed Is Progress Denied

Alex Russell

For heavily latency-sensitive use-cases like WebXR, this is a critical component in delivering a good experience. is access to hardware devices. This allows customisation and use of specialised features without custom, proprietary software for niche hardware. CSS color(). Wide gamut colour is important in creative applications.

Media 145
article thumbnail

Stuff The Internet Says On Scalability For September 14th, 2018

High Scalability

SCM slots between DRAM and flash in terms of latency, cost, and density. Thus, despite both quoting 11 nines of durability against hardware failures, S3 is durable against failures that B2 is not, and is thus better. Because of that big servers and other memory systems need to have another kind of memory in the hierarchy.