| package sample.cache; | |
| import org.infinispan.Cache; | |
| import org.infinispan.configuration.cache.CacheMode; | |
| import org.infinispan.configuration.cache.Configuration; | |
| import org.infinispan.configuration.cache.ConfigurationBuilder; | |
| import org.infinispan.configuration.cache.StorageType; | |
| import org.infinispan.configuration.global.GlobalConfiguration; | |
| import org.infinispan.configuration.global.GlobalConfigurationBuilder; | |
| import org.infinispan.eviction.EvictionStrategy; |
| wrapper.java.additional.19=-agentpath:/jprofiler10.1.4/bin/linux-x64/libjprofilerti.so=port=11002 |
| Dump-1 | |
| INFO | jvm 1 | 2018/09/08 11:39:48 | "http-nio-10.10.34.36-17002-exec-246" #516 daemon prio=5 os_prio=0 tid=0x00007f91f40c0000 nid=0x42c7 waiting on condition [0x00007f91492c2000] | |
| INFO | jvm 1 | 2018/09/08 11:39:48 | java.lang.Thread.State: TIMED_WAITING (parking) | |
| INFO | jvm 1 | 2018/09/08 11:39:48 | at sun.misc.Unsafe.park(Native Method) | |
| INFO | jvm 1 | 2018/09/08 11:39:48 | - parking to wait for <0x000000074ba6b4e8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) | |
| INFO | jvm 1 | 2018/09/08 11:39:48 | at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) | |
| INFO | jvm 1 | 2018/09/08 11:39:48 | at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078) | |
| INFO | jvm 1 | 2018/09/08 11:39:48 | at java.util.concurrent.ArrayBlockingQueue.offer(ArrayBlockingQueue.java:379) | |
| INFO | jvm 1 | 2018/09/08 11:39:48 | at org.infinispan.persistence.util.PersistenceMan |
| sudo service ntp stop | |
| sudo ntpd -gq | |
| sudo service ntp start |
| ### command line http packet capture | |
| sudo ngrep -W byline -d lo port 80 |
| # run following command as root for 2 mins to collect data, data will be written into "perf.data" file | |
| perf record -F 99 -p <PID> | |
| # run following command to display the recoded data | |
| perf report | |
| 1. Count unique lines in a file | |
| cat <file-path> | sort | uniq | wc -l | |
| 2. Append Given Characters in each line of the file | |
| sed 's/$/<data>/' input.txt > output.txt | |
| 3. Find corrupted jar files in local maven repostiory |
| Learning Rust | |
| http://www.rust-lang.org | |
| http://doc.rust-lang.org/book/README.html | |
| http://rustbyexample.com | |
| http://words.steveklabnik.com/a-new-introduction-to-rust |
JIT Compiler Optimizations
[Hotspot] (https://wikis.oracle.com/display/HotSpotInternals/PerformanceTacticIndex)
[LuaJIT] (http://wiki.luajit.org/Optimizations)
[V8] (http://jayconrod.com/posts/54/a-tour-of-v8-crankshaft-the-optimizing-compiler)
[PyPy] (https://pypy.readthedocs.org/en/release-2.3.x/jit/pyjitpl5.html)