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有技术含量的活着 | 生活，Code中的激情，感动，美。生活，Code中的激情，感动，美。
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有技术含量的活着 | 生活，Code中的激情，感动，美。 | lightidea.net Reviews
https://lightidea.net
生活，Code中的激情，感动，美。
lightidea.net
Rick | 有技术含量的活着
http://lightidea.net/author/hh3755
Multi if(exist) / 这个时间有可能出现竞态，键被删除，他又不算重复了。 Return 重复 else 添加条目 return 不重复 exec. 上线前压测单次判断是2ms,后面在预生产环境压测时是10ms,当时奇了怪了，找了半天结果发现原来是redis在生产环境配置过大，全在初始化 使用houseMD跟踪，全在init)，所以很慢。 枚举时要求所有对象停下来，也就是大家所称的 Stop the world”。 因为程序在运行时不是所有的时候停下来都是安全的 比如运算进行到一半，数据值是一个脏数据 ，安全点是所有线程在”Stop the world”时到达的一个安全的点。 对于 安全点 还有另外一个需要考虑的问题是，当GC发生时如何让所有线程都跑到最近的 安全点 ，一般都两种方案。 抢先式中断，抢先式中断是虚拟机将所有线程停下来，然后一一检查是否已达安全点，若没有到达安全点则恢复线程让其到达最近的 安全点”,此种方式几乎没有虚拟机使用。 并发(Concurrent) 指用户线程和垃圾收集线程同时执行 也有可能是交替执行 ，可能用户线程运行在这个CPU上，而垃圾回收线程运行在另一个CPU上。
深入JAVA虚拟机 | 有技术含量的活着
http://lightidea.net/category/读书笔记/深入java虚拟机
枚举时要求所有对象停下来，也就是大家所称的 Stop the world”。 因为程序在运行时不是所有的时候停下来都是安全的 比如运算进行到一半，数据值是一个脏数据 ，安全点是所有线程在”Stop the world”时到达的一个安全的点。 对于 安全点 还有另外一个需要考虑的问题是，当GC发生时如何让所有线程都跑到最近的 安全点 ，一般都两种方案。 抢先式中断，抢先式中断是虚拟机将所有线程停下来，然后一一检查是否已达安全点，若没有到达安全点则恢复线程让其到达最近的 安全点”,此种方式几乎没有虚拟机使用。 并发(Concurrent) 指用户线程和垃圾收集线程同时执行 也有可能是交替执行 ，可能用户线程运行在这个CPU上，而垃圾回收线程运行在另一个CPU上。 MaxGCPauseMillis:期望的最大GC停顿时间，当这个时间就少，他是通过将新生代调小来减少停顿时间 收集300M比收集500M来得快，但这样会导致垃圾收集发生得更频率，原来10秒一次，每次停100ms,现在每5秒停一次，每次停70秒),但会降低总体的吞吐量。 3CMS Concurrent Mark Sweep 并发标记清扫收集器.
十二月 | 2014 | 有技术含量的活着
http://lightidea.net/date/2014/12
枚举时要求所有对象停下来，也就是大家所称的 Stop the world”。 因为程序在运行时不是所有的时候停下来都是安全的 比如运算进行到一半，数据值是一个脏数据 ，安全点是所有线程在”Stop the world”时到达的一个安全的点。 对于 安全点 还有另外一个需要考虑的问题是，当GC发生时如何让所有线程都跑到最近的 安全点 ，一般都两种方案。 抢先式中断，抢先式中断是虚拟机将所有线程停下来，然后一一检查是否已达安全点，若没有到达安全点则恢复线程让其到达最近的 安全点”,此种方式几乎没有虚拟机使用。 并发(Concurrent) 指用户线程和垃圾收集线程同时执行 也有可能是交替执行 ，可能用户线程运行在这个CPU上，而垃圾回收线程运行在另一个CPU上。 MaxGCPauseMillis:期望的最大GC停顿时间，当这个时间就少，他是通过将新生代调小来减少停顿时间 收集300M比收集500M来得快，但这样会导致垃圾收集发生得更频率，原来10秒一次，每次停100ms,现在每5秒停一次，每次停70秒),但会降低总体的吞吐量。 3CMS Concurrent Mark Sweep 并发标记清扫收集器.
数据库 | 有技术含量的活着
http://lightidea.net/category/程序人生/数据库
FROM (SELECT t.userId,. Partition BY t.userId. ORDER BY t.visitTime DESC) rk. FROM accessTable t) rank tab. WHERE rank tab.rk = 1. SELECT acc tab.*,acc tab.rowid. FROM accessTable acc tab,. SELECT Substr(tr tab.time rowid, 15) rk rowid. FROM (SELECT t.userId,. Max(To char(t.visitTime, ‘yyyymmddhh24miss’). Trowid) AS time rowid. GROUP BY t.userId) tr tab)r tab. WHERE acc tab.rowid = r tab.rk rowid. Proudly powered by WordPress. Theme: DW Minion by DesignWall.
Nginx做下载代理IO极高问题 | 有技术含量的活着
http://lightidea.net/56.html
Root@nth-server ]# iostat -x 1. Linux 3.12.9-x86 64-linode37 (nth-server) 05/07/2014 x86 64 (8 CPU). Avg-cpu: %user %nice %system %iowait %steal %idle. 006 000 0.01 0.00 0.11 99.81. Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util. Xvda 0.00 0.34 0.02 0.14 0.52 3.84 27.82 0.00 18.64 2.45 0.04. Xvdb 0.00 0.00 0.00 0.00 0.00 0.00 24.99 0.00 12.02 7.68 0.00. Rrqm/s : 每秒进行 merge 的读操作数目。 Wrqm/s : 每秒进行 merge 的写操作数目。 R/s : 每秒完成的读 I/O 设备次数。 W/s : 每秒完成的写 I/O 设备次数。 18 四, 2014.
TOTAL PAGES IN THIS WEBSITE
18
Radiator Facts And History | The Radiators Resource
http://cheshirecentralheating.co.uk/files/category-radiator-facts-and-history-.html
Archive for the 'Radiator Facts and History' Category. Why You Need A Radiator Cabinet. On 24 Oct 2009. A radiator cabinet is an excellent investment for any home because of the many benefits it provides. For safety, an improved aesthetic, and added utility, you receive excellent value in a radiator cabinet. Radiator Covers and Cabinets. And Radiator Facts and History. Cast Iron Radiator Fundamentals. On 21 May 2009. Why cast iron, anyways? What is the purpose of painting or coating the radiator? Paintin...
Refurbishing Your Cast Iron Radiator | The Radiators Resource
http://cheshirecentralheating.co.uk/files/refurbishing-your-cast-iron-radiator-.html
Refurbishing Your Cast Iron Radiator. Which I’d recommend if you’re interested. Converting a steam radiator to a hot water radiator is a long term project that you should consider consulting a professional for. This can involve working with your boiler, and that’s enough right there to make me nervous. Work with the pros for conversions to avoid unnecessary damage to your cast iron radiator and your home. Refurbishing and Restoring Radiators. Radiator Covers and Cabinets. Radiator Facts and History.
Radiator Covers And Cabinets | The Radiators Resource
http://cheshirecentralheating.co.uk/files/category-radiator-covers-and-cabinets-.html
Archive for the 'Radiator Covers and Cabinets' Category. Why You Need A Radiator Cabinet. On 24 Oct 2009. A radiator cabinet is an excellent investment for any home because of the many benefits it provides. For safety, an improved aesthetic, and added utility, you receive excellent value in a radiator cabinet. Radiator Covers and Cabinets. And Radiator Facts and History. Radiator Covers and Cabinets. Radiator Facts and History. Refurbishing and Restoring Radiators. Why You Need A Radiator Cabinet.
Radiator Varieties | The Radiators Resource
http://cheshirecentralheating.co.uk/files/category-radiator-varieties-.html
Archive for the 'Radiator Varieties' Category. Comfort and Warmth With Bathroom Radiators. On 24 Oct 2009. Low Costs, Large Benefits. On 23 Oct 2009. Electric radiators are a great way to go if you don’t have a large budget or a large space to heat. Installation and Maintenance Costs. The Benefits of Electric Radiators. Next Page ». Radiator Covers and Cabinets. Radiator Facts and History. Refurbishing and Restoring Radiators. Why You Need A Radiator Cabinet. Comfort and Warmth With Bathroom Radiators.
Electric Radiators | The Radiators Resource
http://cheshirecentralheating.co.uk/files/electric-radiators-.html
Electric radiators are a great way to go if you don’t have a large budget or a large space to heat. Installation and Maintenance Costs. The Benefits of Electric Radiators. Electric radiators definitely have their advantages. While they don’t put out as much heat per unit as other kinds of radiators, they require less energy and have less costs associated with them. Before you look into installing expensive radiator systems, make sure to check into electric radiators. Radiator Covers and Cabinets.
Refurbishing And Restoring Radiators | The Radiators Resource
http://cheshirecentralheating.co.uk/files/category-refurbishing-and-restoring-radiators-.html
Archive for the 'Refurbishing and Restoring Radiators' Category. Refurbishing Your Cast Iron Radiator. On 21 May 2009. Which I’d recommend if you’re interested. Converting a steam radiator to a hot water radiator is a long term project that you should consider consulting a professional for. This can involve working with your boiler, and that’s enough right there to make me nervous. Work with the pros for conversions to avoid unnecessary damage to your cast iron radiator and your home.
Cast Iron Radiator Safety Tips | The Radiators Resource
http://cheshirecentralheating.co.uk/files/cast-iron-radiator-safety-tips.html
Cast Iron Radiator Safety Tips. May take care of the mess, reducing the fire hazard that cast iron radiators pose, but they keep your loved ones away from danger.Here’s a couple of basic safety tips you can use to make your radiator less of a hazard. Safety is of paramount importance, and all the more so with a cast iron radiator. Take the necessary precautions and you can enjoy all the benefits of these units without any of the worry. Radiator Covers and Cabinets. Radiator Facts and History.
Radiator Maintenance | The Radiators Resource
http://cheshirecentralheating.co.uk/files/category-radiator-maintenance-.html
Archive for the 'Radiator Maintenance' Category. On 21 May 2009. If you’re anything like me, you’re a do it yourself kind of person. It’s always more fun and exciting to be able to fix things yourself than to have to call in the pros. But is this a good attitude to have when dealing with cast iron radiators? What kind of maintenance should you be attempting, and what should you be calling in the plumber for? Problems With the Circulator. Radiator Covers and Cabinets. Radiator Facts and History.
Bathroom Radiators | Bathroom Towel Radiators | The Radiators Resource
http://cheshirecentralheating.co.uk/files/bathroom-radiators-.html
Comfort and Warmth With Bathroom Radiators. Low Costs, Large Benefits. Radiator Covers and Cabinets. Radiator Facts and History. Refurbishing and Restoring Radiators. Why You Need A Radiator Cabinet. Comfort and Warmth With Bathroom Radiators. Refurbishing Your Cast Iron Radiator. Modern Cast Iron Radiators. Cast iron radiator maintenance. Cast iron radiator repair. Cast iron radiator safety. Modern cast iron radiators. Refurbish cast iron radiators. Restore cast iron radiators.
Radiator Cabinets | The Radiators Resource
http://cheshirecentralheating.co.uk/files/radiator-cabinets-.html
Why You Need A Radiator Cabinet. A radiator cabinet is an excellent investment for any home because of the many benefits it provides. For safety, an improved aesthetic, and added utility, you receive excellent value in a radiator cabinet. Radiator Covers and Cabinets. And Radiator Facts and History. Radiator Covers and Cabinets. Radiator Facts and History. Refurbishing and Restoring Radiators. Why You Need A Radiator Cabinet. Comfort and Warmth With Bathroom Radiators. Refurbishing Your Cast Iron Radiator.
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有技术含量的活着 | 生活，Code中的激情，感动，美。
Multi if(exist) / 这个时间有可能出现竞态，键被删除，他又不算重复了。 Return 重复 else 添加条目 return 不重复 exec. 上线前压测单次判断是2ms,后面在预生产环境压测时是10ms,当时奇了怪了，找了半天结果发现原来是redis在生产环境配置过大，全在初始化 使用houseMD跟踪，全在init)，所以很慢。 枚举时要求所有对象停下来，也就是大家所称的 Stop the world”。 因为程序在运行时不是所有的时候停下来都是安全的 比如运算进行到一半，数据值是一个脏数据 ，安全点是所有线程在”Stop the world”时到达的一个安全的点。 对于 安全点 还有另外一个需要考虑的问题是，当GC发生时如何让所有线程都跑到最近的 安全点 ，一般都两种方案。 抢先式中断，抢先式中断是虚拟机将所有线程停下来，然后一一检查是否已达安全点，若没有到达安全点则恢复线程让其到达最近的 安全点”,此种方式几乎没有虚拟机使用。 并发(Concurrent) 指用户线程和垃圾收集线程同时执行 也有可能是交替执行 ，可能用户线程运行在这个CPU上，而垃圾回收线程运行在另一个CPU上。
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Красивое и запоминающееся имя. Для Вашего нового бренда. Как из идеи создаются бренды? Законодательно защитить можно только реализованную идею, а значит пришло время воплощать. Для этого мы подготовили комплекс услуг, что бы вы могли создать свой уникальный бренд. Если Вы дизайнер или инженер то патентование. Ваших разработок придаст им ценность в глазах инвесторов. Для продвижения и маркетинга, бесспорно имя. Это ключ к взаимодействию с вашей аудиторией. Регистрация товарного знака. Мы всегда на связи.
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Light Ideas International Ltd – Outdoor Lighting Solutions Brought To You By Light Ideas
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