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Recently, I had some development ideas. So I read some books on business models. Among them, this free book has made me think for a long time.Free is written by Anderson, who is also the author of Long Tail theory. I have a deep understanding of the business model. If the model in the book "Long Tail Theory" is the United States, the book "free" is a lot of reference to the most practical cases in China. Ob

A recently maintained network server encountered performance problems, so it made major changes to the original program framework. Most of the changes are the thread working mode and data transmission mode. The final result is to change the lock usage mode. After some improvement, we can basically achieve GMB Network Adapter working at full speed. In After the performance was up to standard, I was wondering if I could use a more lightweight lock or remove the lock. For this reason, I searched s

The author of the blog used to use free home space, although it is free, but let me have a lot of resentment, such as not to use Feedsky, speed is not stable, some places in the country can not open, at any time there is the risk of shielding, space function limit ... In view of these considerations, the author finally decided to change a pay space, is the money to buy a convenient. The following article ma

Basic concepts of three states:1, temporary State (Transient): Also called Free State, exists only in memory, and there is no corresponding data in the database. Object created with new, it is not persisted, is not in session, the object in this state is called a temporary object;2, Persistence State (persistent): associated with the session and has corresponding data in the database. has been persisted and added to the session cache. objects, such as

Basic concepts of three states:1, transient State (Transient): Also called Free State, exists only in memory, and there is no corresponding data in the database. Object created with new, it is not persisted, is not in session, the object in this state is called a temporary object;2, Persistence State (persistent): associated with the session and has corresponding data in the database. has been persisted and added to the session cache. objects, such as

Basic concepts of three states:1, transient State (Transient): Also called Free State, exists only in memory, and there is no corresponding data in the database. Object created with new, it is not persisted, is not in session, the object in this state is called a temporary object;2, Persistence State (persistent): associated with the session and has corresponding data in the database. has been persisted and added to the session cache. objects, such as

I believe many of my friends like to order text message services such as weather forecasts on their mobile phones.Weather ForecastPayment is required, although the price is not expensive, but if you have a free and stable weather forecast text message subscription, how good is it! Google GoogleAfter entering the Chinese market, we are constantly striving to provide some localized services.GoogleWe launched our own completely

This is a "free online game" of the era, almost all online games have played a "free" or even "permanent free" signs. But whether it is really "free" is not easy to say, many of the young players trapped in the "free online games" is a huge expense, even many of them to play

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Original: Lock-free data structure (LOCK-FREE data structures)One weeks ago, I wrote an article about the latch (latches) and spin lock (Spinlocks) in SQL Server. The 2 synchronization primitives (synchronization primitives) are used to protect shared data structures in SQL Server, such as pages in the cache pool (via a latch (latches)), and locks in the Lock Manager hash table (via a spin lock (Spinlock)).

The following information from the network, did not get confirmation of this site, please identify yourself. Please see the following provider's introductory instructions:] Free Space Application Requirements --> The following is an example of what was being demonstrated!! Specific circumstances and changes to the site data is subject to! Thanks for your cooperation . Space Line:

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One weeks ago, I wrote an article about the latch (latches) and spin lock (Spinlocks) in SQL Server. The 2 synchronization primitives (synchronization primitives) are used to protect shared data structures in SQL Server, such as pages in the cache pool (via a latch (latches)), and locks in the Lock Manager hash table (via a spin lock (Spinlock)). Next you will see more and more new synchronization primitives (synchronization primitives), the so-called lock-