Ralph Goers

We've just released Apache Log4j 2.19.0! This release introduces support for SLF4J 2.0 amongst other items detailed in lists.apache.org/thread/ny774jy… Support the Log4j project via sponsoring developers via @github sponsors! logging.apache.org/log4j/2.x/supp… #log4j #log4j2

@yazicivo @TheASF @jvz @RemkoPopma The only thing you should be surprised at is how long we took. You earned it!

As of Saturday, I became an official committer to the @TheASF Logging Services! 🎉 I am totally shocked and speechless! Thanks so much to @jvz, @RemkoPopma, @rgoers, et al. for guiding me in the mailing lists. 🙏

Log4j 1 Compatibility in Log4j 2 - ralphgoers.com/home/log4j-1-c…

Why Log4j 2 was created - ralphgoers.com/home/why-was-l…

@RemkoPopma @qos_ch @ceki See the last 2 comments in jira.qos.ch/browse/SLF4J-1…. Converting the API to use Messages was suggested almost 10 years ago.

@qos_ch @ceki If there is still time for SLF4J 2.0, I propose changing the Logger methods that take a String to accept an Object instead (excl. the methods that take format params); this enables garbage-free implementations of the API. The String-based API makes that impossible..

@ceki I'm very confused. Here are my numbers for Logback 1.2. They show Logback 1.2 is about 3 times slower than Logback 1.1.10.

@ceki @RemkoPopma Your numbers still show logback as slightly worse then Log4j 1. Why is that? Interesting also that RAF is so low for you.

@ceki @RemkoPopma I ran again on a Linux VM I have in our prod environment. It only has 2 cores available. No idea what other VMs are doing.

@ceki @RemkoPopma logback - 1.6%, log4j2 - 3.4%, log4j2 RAF - 3.7% variances. Seems an ok trade off for the performance gain.

@ceki @RemkoPopma I ran it again with the same parameters as yours. I am using a Macbook Pro with 4 hyperthreads. I see you are on Windows.

@RemkoPopma @ceki I ran the benchmark for Log4j 2.7 and got

@connolly_s @GaryGregory @struberg @nipafx @bmathus It is difficult to make out what you are doing on twitter. Please send to the list.

@kentpawz I don't know who you are and have never called you.