# Rules execution speed **URL:** \ **Category:** Beginners\ **Created:** [October 13, 2016, 4:11am UTC](https://community.openhab.org/t/rules-execution-speed/15202 "2016-10-13T04:11:03Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![gdhiraj](https://community.openhab.org/letter_avatar_proxy/v4/letter/g/71e660/32.png) [@gdhiraj](https://community.openhab.org/u/gdhiraj)\ **Post date:** [October 13, 2016, 4:11am UTC](https://community.openhab.org/t/rules-execution-speed/15202/1 "2016-10-13T04:11:03Z")
Hello, I am executing multiple commands via single rule (like a mood or scene activation) but there is a lot of delay in this execution from pressing a button on IOS app the execution of rule and commands inside happens after 3-4 seconds this makes the user feels that nothing happened by pressing button and tend to press it again. Any pointers to improve this ? I run system on Pi3 and “top” shows me Java taking up close to 100% of cpu most of time. rule “LR\_AllOff\_Fast”.. i have mix of Items from Hue to Zwave to lightwaverf in single rule as below - //SITEMAP Switch Item=LRAllOff mappings=[On=“All Off”] //ITEMS String LRAllOff “Living Room All Off” //RULES when Item LRAllOff changed to ON or Item LRBrightMood changed to OFF then sendCommand(PoppDimmer1LoadLevelStatus, 0) sendCommand(PoppDimmer2LoadLevelStatus, 0) sendCommand(LRDimmerBulb02\_03, 0) sendCommand(LRCornerLamp01, OFF) sendCommand(LRCornerLamp02, OFF) sendCommand(LRTallCabinetLight, OFF) sendCommand(LRDiningAntiqueLight, OFF) sendCommand(LRBookRackLight, OFF) end ---
**Author:** ![mstormi](https://community.openhab.org/user_avatar/community.openhab.org/mstormi/32/55857_2.png) [@mstormi](https://community.openhab.org/u/mstormi)\ **Post date:** [October 13, 2016, 7:32am UTC](https://community.openhab.org/t/rules-execution-speed/15202/2 "2016-10-13T07:32:01Z")
Mmh. A RPi3 is way fast enough and OH should need far less CPU. Check logging, in particular increase it for rules. ` ` Reinitializations use 100% CPU They’re taking place after you change items, rules or sitemaps. While this is normally accomplished in less than seconds, if a rule fails to load or crashes during execution, this can become a repetitive process, resulting in permanent CPU load you’re seeing. ---
**Author:** ![gdhiraj](https://community.openhab.org/letter_avatar_proxy/v4/letter/g/71e660/32.png) [@gdhiraj](https://community.openhab.org/u/gdhiraj)\ **Post date:** [October 13, 2016, 11:44am UTC](https://community.openhab.org/t/rules-execution-speed/15202/3 "2016-10-13T11:44:10Z")
Thanks for the pointer .. however i am using OH2 and i cannot figure out where to put the logging statement for “rules” as there is no logbook.xml in OH2 .. can you suggest further. ---
**Author:** ![rlkoshak](https://community.openhab.org/user_avatar/community.openhab.org/rlkoshak/32/75251_2.png) [@rlkoshak](https://community.openhab.org/u/rlkoshak)\ **Post date:** [October 13, 2016, 8:27pm UTC](https://community.openhab.org/t/rules-execution-speed/15202/4 "2016-10-13T20:27:44Z")
> [@Taming openHAB 2 Logging](https://community.openhab.org/t/taming-openhab-2-logging/13976): > > This post is OBE. See [Log4j2 Sample Config](https://community.openhab.org/t/log4j2-sample-config/33284) \*\*NOTE: With the build from November 10 #579 the location of all the files in runtime/karaf/etc have moved to userdata/etc. The instructions below have been updated accordingly. If you are running an older verison of openHAB (anything older than build #579), the location of the file is runtime/karaf/etc. As almost everyone is aware, openHAB 2 uses a completely different logging library and approach to logging than openHAB 1.x does, replacing logback wi… ---
**Author:** ![gdhiraj](https://community.openhab.org/letter_avatar_proxy/v4/letter/g/71e660/32.png) [@gdhiraj](https://community.openhab.org/u/gdhiraj)\ **Post date:** [October 14, 2016, 3:10am UTC](https://community.openhab.org/t/rules-execution-speed/15202/5 "2016-10-14T03:10:38Z")
hi Rich, thanks i tried this - with the following updated to my logging file the rules.log file is generated by no entries are wrttend in it .. ☹ .. any help. # openHAB specific logger configuration log4j.logger.org.openhab.model.script.rules = ALL, rules, osgi:\* log4j.additivity.org.openhab.model.script.rules = false # File appender - rules.log log4j.appender.rules=org.apache.log4j.RollingFileAppender log4j.appender.rules.layout=org.apache.log4j.PatternLayout log4j.appender.rules.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSS} [%-26.26c{1}] - %m%n log4j.appender.rules.file=${openhab.logdir}/rules.log log4j.appender.rules.append=true log4j.appender.rules.maxFileSize=5MB log4j.appender.rules.maxBackupIndex=5 ---
**Author:** ![rlkoshak](https://community.openhab.org/user_avatar/community.openhab.org/rlkoshak/32/75251_2.png) [@rlkoshak](https://community.openhab.org/u/rlkoshak)\ **Post date:** [October 14, 2016, 3:37am UTC](https://community.openhab.org/t/rules-execution-speed/15202/6 "2016-10-14T03:37:17Z")
You should use ``` log4j.logger.org.eclipse.smarthome.model.script = ALL, rules, osgi: * ``` All of the core classes have changed packages in OH 2. ---
**Author:** ![gdhiraj](https://community.openhab.org/letter_avatar_proxy/v4/letter/g/71e660/32.png) [@gdhiraj](https://community.openhab.org/u/gdhiraj)\ **Post date:** [October 14, 2016, 5:31am UTC](https://community.openhab.org/t/rules-execution-speed/15202/7 "2016-10-14T05:31:43Z")
I tried # openHAB specific logger configuration log4j.logger.org.eclipse.smarthome.model.script = ALL, rules, osgi: \* log4j.additivity.org.eclipse.smarthome.model.script = false also i tried # openHAB specific logger configuration log4j.logger.org.eclipse.smarthome.model.script.rules = ALL, rules, osgi: \* log4j.additivity.org.eclipse.smarthome.model.script.rules = false but both doesnt generate any logs from rules 😕 ---
**Author:** ![rlkoshak](https://community.openhab.org/user_avatar/community.openhab.org/rlkoshak/32/75251_2.png) [@rlkoshak](https://community.openhab.org/u/rlkoshak)\ **Post date:** [October 14, 2016, 8:59pm UTC](https://community.openhab.org/t/rules-execution-speed/15202/8 "2016-10-14T20:59:36Z")
Not sure what is wrong. The sum total of my knowledge on the subject is captured by the link I provided.