Flash存储设备在淘宝的应用实践(2011年iDevOps系统技术沙龙）
December 26th, 2011
原创文章，转载请注明： 转载自系统技术非业余研究
Flash存储设备在淘宝的应用实践
View more presentations from Feng Yu
Post Footer automatically generated by wp-posturl plugin for wordpress.
Comments are closed.
buy me a coffee.
Recent Posts
Recent Comments
- 王学兵 on 关于我
- Thomas on 斜杆/短波
- xie liang on 2017年开始阅读的电子书（持续更新）
Archives
- February 2024
- May 2023
- October 2022
- December 2020
- April 2020
- March 2020
- February 2020
- January 2020
- December 2019
- November 2019
- October 2019
- January 2018
- December 2017
- May 2016
- April 2015
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- October 2012
- September 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
- December 2011
- November 2011
- October 2011
- September 2011
- July 2011
- June 2011
- May 2011
- April 2011
- March 2011
- February 2011
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
- July 2010
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- January 2010
- November 2009
- October 2009
- September 2009
- August 2009
请问一下：
1. flashcache用起来怎么样？和类似的bcache比较起来有什么差别？
2. IOPS 和 latency，这里面的 latency 是怎么测试出来的？ 这里 latency 主 要是什么导致的？
Yu Feng Reply:
February 24th, 2012 at 1:27 pm
bcache在vfs层，flashcache在dm层，latency是数据库网络收到请求到发出反应的延迟
Yu Feng Reply:
February 28th, 2012 at 6:35 pm
bcache准确的将是把扔到io请求队列的bio请求给截获了，所以比底层的DM更了解io的原本面貌点。