I checked out Maven and used its build as a comparison. First, I ran the log4j 2 build and it was taking around 59 seconds. I then changed the log4j2.xml to remove the colors. I then got an average time for Log4j 2 of 54.76s and for Logback I get an average of 55.225s. I consider these differences to be meaningless.
For reference, the log4j2.xml I used is attached. Ralph
log4j2.xml
Description: XML document
On Dec 11, 2012, at 11:19 PM, Stephen Connolly wrote: > Well I am not going to tar and feather log4j2 based on one set of runs on > my machine. I would like somebody else to repeat and confirm first as there > could have been some background OS update or other process stealing CPU > while doing the 3 log4j2 runs. > > Also I do not know if I am comparing the same things. Afaik the log back > branch has the latest fixes in it, while the log4j2 branch is the colorized > one from a few weeks back and likely has not got the fixes required for the > issues you identified with the last 3.1.0 RC > > We need to compare like with like to make an informed decision... I am just > putting some numbers down as a starting point > > -Stephen > > On Wednesday, 12 December 2012, Kristian Rosenvold wrote: > >> Finally some interesting numbers, and if (heaven forbid) this decision >> should be based on >> technical grounds, this is one of the first significant pieces to come >> up in this discussion. >> >> Since I am quite unfamiliar with logging (I use loose coupling and >> tests instead ;), I took the opportunity to read >> http://logging.apache.org/log4j/2.x/performance.html Somehow the >> real-life results don't seem to match up with the advertising blurp on >> the log4j site. While it hardly surprises me, I was wondering if >> anyone actually knows why? >> >> Kristian >> >> >> >> 2012/12/12 Stephen Connolly <stephen.alan.conno...@gmail.com<javascript:;> >>> : >>> The consistent times (i.e. repeated runs after discarding the first) are: >>> >>> 3.0.4: 1min18sec >>> logback: 1min13sec >>> log4j2: 1min34sec >>> >>> The second test was building GIT hash >>> 85dd6e37456d30d2661e10b044efa9036c528023 of jszip-maven-plugin (@ >> jszip.org) >>> with the following command line: >>> >>> mvn -o -X clean verify -DskipTests -Dinvoker.skip >>> >>> [Testing heavy logging] >>> >>> 3.0.4: 12.1sec >>> logback: 12.2sec >>> log4j2: 12.5sec >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org <javascript:;> >> For additional commands, e-mail: dev-h...@maven.apache.org <javascript:;> >> >>
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