OpenStack的性能调优工具
简介
osprofiler是专门针对OpenStack的性能调优工具，采集到的信息可以存入ceilometer、redis、mongodb、elasticsearch等后端，默认存储在ceilometer中。
安装
还是以devstack方式先安装个OpenStack出来，上个local.conf配置文件（性能信息存入ceilometer）
$ cat local.conf
[]
# use trystack git mirror
GIT_BASE=http://git.trystack.cn
NOVNC_REPO=http://git.trystack.cn/kanaka/noVNC.git
SPICE_REPO=
# enable panko, panko provides event storage for ceilometer now.
enable_plugin panko http://git.trystack.cn/openstack/panko
enable_plugin ceilometer http://git.trystack.cn/openstack/ceilometer
enable_plugin osprofiler http://git.trystack.org/openstack/osprofiler master
#CEILOMETER_BACKEND=mongodb
RECLONE=no
# add profiler topic
CEILOMETER_NOTIFICATION_TOPICS=notifications,profiler
# define osprofiler hmac keys
OSPROFILER_HMAC_KEYS=swordfish,foxtrot,charlie
enable_service ceilometer-api
PANKO_BACKEND=mongodb
[]
enabled = True
trace_sqlalchemy = True 安装过程，就不详细叙述了！
注意：devstack安装osprofiler的时候，会以pip install osprofiler的方式安装（可能有坑），需要pip uninstall osprofiler，
然后切换到osprofiler源码目录，执行python setup.py build && python setup.py install.
使用
# 使用上面定义好的OSPROFILER_HMAC_KEYS中的任意一个
$ nova --profile charlie\
boot --image 8e02a6be-511a-4904-a400-87f8d86a5862 \
--flavor 1 \
--nic net-id=cbfdd288-2357-4161-8180-f7d6bd001420 \
test1
/usr/lib/python2.7/site-packages/novaclient/client.py:278: UserWarning: The 'tenant_id' argument is deprecated in Ocata and its use may result in errors in future releases. As 'project_id' is provided, the 'tenant_id' argument will be ignored.
warnings.warn(msg)
+--------------------------------------+-----------------------------------------------------------------+
| Property | Value |
+--------------------------------------+-----------------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | |
| OS-EXT-SRV-ATTR:host | - |
| OS-EXT-SRV-ATTR:hostname | test1 |
| OS-EXT-SRV-ATTR:hypervisor_hostname| - |
| OS-EXT-SRV-ATTR:instance_name | |
| OS-EXT-SRV-ATTR:kernel_id | |
| OS-EXT-SRV-ATTR:launch_index | 0 |
| OS-EXT-SRV-ATTR:ramdisk_id | |
| OS-EXT-SRV-ATTR:reservation_id | r-on04hs1u |
| OS-EXT-SRV-ATTR:root_device_name | - |
| OS-EXT-SRV-ATTR:user_data | - |
| OS-EXT-STS:power_state | 0 |
| OS-EXT-STS:task_state | scheduling |
| OS-EXT-STS:vm_state | building |
| OS-SRV-USG:launched_at | - |
| OS-SRV-USG:terminated_at | - |
| accessIPv4 | |
| accessIPv6 | |
| adminPass | vzJTN6apxGu7 |
| config_drive | |
| created | 2017-03-14T02:08:48Z |
| description | - |
| flavor | m1.tiny (1) |
| hostId | |
| host_status | |
| id | a399a3f0-3ee5-4dbe-bc71-61cde64f3107 |
| image | cirros-0.3.5-x86_64-disk (8e02a6be-511a-4904-a400-87f8d86a5862) |
| key_name | - |
| locked | False |
| metadata | {} |
| name | test1 |
| os-extended-volumes:volumes_attached | [] |
| progress | 0 |
| security_groups | default |
| status | BUILD |
| tags | [] |
| tenant_id | fb39574612b748e9b3dcd4597b8cf3c4 |
| updated | 2017-03-14T0
| user_id | c376ccfaa36842889becad4491488941 |
+--------------------------------------+-----------------------------------------------------------------+
To display trace use the command:
osprofiler trace show --html 7c157a83-8608-45c2-9989-68da9a18906e
生成html报告
$ osprofiler trace show --html 7c157a83-8608-45c2-9989-68da9a18906e \
--out /tmp/a.html
来看看报告格式
参考链接
https://docs.openstack.org/developer/osprofiler/api.html#five-ways-to-add-a-new-trace-point
http://niusmallnan.com/_build/html/_templates/openstack/osprofiler.html
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