Remove c
article thumbnail

Should You Use ClickHouse as a Main Operational Database?

Percona

However, ClickHouse is super efficient for timeseries and provides “sharding” out of the box (scalability beyond one node). To simulate text messages I have used ~3 billion of reddit comments (10 years from 2007 to 2017), downloaded from pushshift.io. So can we use it as our main datastore? count()?? ? 1 rows in set.

article thumbnail

Effective Concurrency: Prefer Using Active Objects Instead of Naked Threads

Sutter's Mill

From the article: … Active objects dramatically improve our ability to reason about our thread’s code and operation by giving us higher-level abstractions and idioms that raise the semantic level of our program and let us express our intent more directly. NET, Java, and C/Pthreads. 2 How Much Scalability Do You Have or Need?

C++ 40
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

How To Measure the Working Set Size on Linux

Brendan Gregg

It is used for capacity planning and scalability analysis. The tool also has a cumulative mode (-C), which resets the referenced flags once then takes continuous measurements. wss.pl -C `pgrep -n mysqld` 1. Your app may have populated 100 Gbytes of main memory, but only uses 50 Mbytes each second to do its job. 102.36. [.].

Cache 71
article thumbnail

How To Measure the Working Set Size on Linux

Brendan Gregg

It is used for capacity planning and scalability analysis. The tool also has a cumulative mode (-C), which resets the referenced flags once then takes continuous measurements. wss.pl -C `pgrep -n mysqld` 1. Your app may have populated 100 Gbytes of main memory, but only uses 50 Mbytes each second to do its job. 102.36. [.].

Cache 40
article thumbnail

Data Mining Problems in Retail

Highly Scalable

Customer retention programs can require the identification of customers who are likely to stop the relationship with a retailer but can change their minds under the influence of incentives. This metric reveals customers with high revenue potential, hence it can be used in loyalty programs and usage expansion campaigns. Kadie, 1998.

Retail 152
article thumbnail

Egnyte Architecture: Lessons learned in building and scaling a multi petabyte content platform

High Scalability

Egnyte is a secure Content Collaboration and Data Governance platform, founded in 2007 when Google drive wasn't born and AWS S3 was cost-prohibitive. In 2007, businesses had started to become more distributed; customers were using multiple devices to access their files and there was a need to make this experience as smooth as possible.