article thumbnail

USENIX SREcon APAC 2022: Computing Performance: What's on the Horizon

Brendan Gregg

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

article thumbnail

USENIX SREcon APAC 2022: Computing Performance: What's on the Horizon

Brendan Gregg

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. Ford, et al., “TCP

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

Percentiles don’t work: Analyzing the distribution of response times for web services

Adrian Cockcroft

The mean and percentile measurements hide this structure, but the rest of this post will show how the structure can be measured and analyzed so that you can figure out a useful model of your system, understand what is driving the long tail of latencies and come up with better SLAs and measures of capacity.

Lambda 98
article thumbnail

KeyCDN Launches POP in Romania

KeyCDN

The next closest active POP location to Bucharest was Istanbul which was still almost 900km away; this distance adds up in terms of latency. As for Romania, it covers an area of over 238,000 square kilometers and as of 2017 had a population of almost 20 million. In 2017, the average speed was 21.33Mb/s ranking them 18th in the world.

article thumbnail

KeyCDN Launches POP in Helsinki

KeyCDN

Although both countries are relatively close to one another, they are separated by a distance of approximately 500km, which adds up in terms of latency. According to Wikipedia , the average connection speed in Q1 of 2017 was 20.5Mbps. This is a massive increase from year 2000 when only 37.2% of the population were Internet users.

article thumbnail

Tuning SQL Server Reporting Services

SQL Performance

For years SSRS was bundled with the installation of SQL Server, which helped add to some of the confusion around licensing and support for the product, so beginning with SSRS 2017, the installation package for Reporting Services is a separate download. Disk latency for ReportServer and ReportServerTempDB are very important.

Tuning 67
article thumbnail

Revisiting “Serverless Architectures”

The Symphonia

Gojko Adzic has done some great speaking and writing on his experience here, and I included the link to his talk from late 2017. I also rewrote the section on Startup Latency since Cold Starts are one of the big “FUD” areas of Serverless. I also wrote an article on just this area last year.