coderplay

{  
  "ociVersion": "1.0.1-dev",  
  "process": {  
  "terminal": true,  
  "user": {  
  "uid": 0,  
  "gid": 0  
  },  
  "args": [  
      "/bin/bash"  

coderplay

import com.carrotsearch.randomizedtesting.RandomizedRunner;
import org.jboss.byteman.contrib.bmunit.BMRule;
import org.jboss.byteman.contrib.bmunit.BMRules;
import org.jboss.byteman.contrib.bmunit.BMRunnerUtil;
import org.jboss.byteman.contrib.bmunit.BMScript;
import org.jboss.byteman.contrib.bmunit.BMScripts;
import org.jboss.byteman.contrib.bmunit.BMUnit;
import org.jboss.byteman.contrib.bmunit.BMUnitConfig;
import org.jboss.byteman.contrib.bmunit.BMUnitConfigState;

coderplay

$ sudo   /usr/local/sbin/ply -D  -c 'kprobe:vfs_read{ printf("%v: %v\n", comm(), arg(0)); }'
symtable:
ast:
`-> <script> (type:script/none size:0x0 loc:nowhere)
    `-> kprobe:vfs_read (type:probe/none size:0x0 loc:nowhere)
        `-> <auto>.printf (type:call/none size:0x0 loc:reg/0)
            |-> "%v: %v\n"(type:str/str size:0x8 loc:virtual)
            `-> <rec> (type:rec/none size:0x20 loc:stack/-0x20)
                |-> 0 (type:int/int size:0x8 loc:stack/-0x20)

coderplay

pool-1-thread-126" #152 prio=5 os_prio=0 tid=0x00007f34ec6ae800 nid=0xc03f waiting on condition [0x00007f3416be9000]
   java.lang.Thread.State: TIMED_WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x0000000080451948> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.parkUntil(LockSupport.java:256)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitUntil(AbstractQueuedSynchronizer.java:2120)
        at org.apache.http.pool.AbstractConnPool.getPoolEntryBlocking(AbstractConnPool.java:378)
        at org.apache.http.pool.AbstractConnPool.access$200(AbstractConnPool.java:69)
        at org.apache.http.pool.AbstractConnPool$2.get(AbstractConnPool.java:246)
        - locked <0x00000005d0231ab8> (a org.apache.http.pool.AbstractConnPool$2)

coderplay

bash-3.2$ python
Python 2.7.10 (default, Feb  6 2017, 23:53:20) 
[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.34)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> def func(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12):
def func(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12):
...     return arg1+arg2+arg3+arg4+arg5+arg6+arg7+arg8+arg9+arg10+arg11+arg12
    return arg1+arg2+arg3+arg4+arg5+arg6+arg7+arg8+arg9+arg10+arg11+arg12
... 

coderplay

frequent YGC.

# To display the perf.data header info, please use --header/--header-only options.
#
#
# Total Lost Samples: 0
#
# Samples: 535K of event 'cycles'

coderplay

export PATH=/usr/local/sbin:$PATH

export JAVA_HOME="$(/usr/libexec/java_home -v 1.8)"

# GOLANG
export GOPATH=$HOME/software/gopath
export PATH=$PATH:$GOPATH/bin

# GNU TAR
export PATH=/usr/local/opt/gnu-tar/libexec/gnubin:$PATH

coderplay

#!/usr/bin/env bash

set -e

VER=$1
PROJ="etcd"

if [ -z "$1" ]; then
        echo "Usage: ${0} VERSION" >> /dev/stderr
        exit 255

coderplay

[defaults]
timeout=20
forks=20
remote_user=ubuntu
jinja2_extensions=jinja2.ext.do,jinja2.ext.i18n
#

[ssh_connection]
# scp_if_ssh=True
# pipelining=True

coderplay

66.69% java [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore 
|
--- _raw_spin_unlock_irqrestore
| 
|--99.96%-- compaction_alloc
| migrate_pages
| compact_zone
| try_to_compact_pages
| __alloc_pages_direct_compact
| __alloc_pages_nodemask