鳥哥的 Linux 私房菜 -- DNS Server DNS 利用類似樹狀目錄的架構，將主機名稱的管理分配在不同層級的 DNS 伺服器當中，經由分層管理， 所以每一部 DNS 伺服器記憶的資訊就不會很多，而且若有 IP 異動時也相當容易修改！因為你如果已經申請到主機名稱解析的授權， 那麼在你自己的 DNS ...
CPU cache - Wikipedia, the free encyclopedia A CPU cache is a cache used by the central processing unit (CPU) of a computer to reduce the average time to access memory. The cache is a smaller, faster memory which stores copies of the data from frequently used main ...
如何关闭硬盘写缓存（Write Cache） – Linux Kernel Exploration 在Linux中，有时我们希望打开或关闭硬盘写缓存（Write Cache），此时可以用hdparm命令来实现。 建议下载最新hdparm版本，网址为： http://sourceforge.net/projects/hdparm/ 查看当前硬盘写Cache状态 root@ubuntu:~/hdparm-9.37# hdparm -W /dev/sda
Cache 的write back和write through - - 博客頻道 - CSDN.NET Cache 的write back和write through 收藏 為了保證cache和memory的數據一緻性，通常有三種方法：1〉write through：CPU向cache寫入數據時，同時向memory也寫一份，使cache和memory的數據保持一緻。優點是簡單，缺點是每次都要訪問memory，速度比較慢。
The Linux Page Cache and pdflush - WestNet Internet Services Home Page The Linux Page Cache and pdflush: Theory of Operation and Tuning for Write-Heavy Loads As you write out data ultimately intended for disk, Linux caches this information in an area of memory called the page cache. You can find out basic info about the page
Linux for You :): Concept about Linux Page Cache and pdflush Concept about Linux Page Cache and pdflush : When we try to write data, Linux caches this information in an area of memory called the page cache. We can check this cache memory using free, vmstat or top command. Even we can get information in /proc ...
Disk buffer - Wikipedia, the free encyclopedia 1 Uses 1.1 Read-ahead/read-behind 1.2 Speed matching 1.3 Write acceleration 1.4 Command queuing 2 Cache control from the host 2.1 Cache flushing ... Uses [edit] Read-ahead/read-behind [edit] When executing a read from the disk, the disk arm moves the read
Flash-Based Write Cache(FBWC) & Battery-Backed Wri... - HP Enterprise Business Community We had a question on HP Smart Array Controller technology - Flash-Based Write Cache(FBWC) & Battery-Backed Write Cache(BBWC) controllers and wh... ... Are there any disadvantages for not using the capacitor pack? I read cache data could be stored about ..
Linux System Administrator's Guide - The buffer cache Linux System Administrator's Guide: The buffer cache ... Because of this, you should never turn off the power without using a proper shutdown procedure or remove a floppy from the disk drive until it has been unmounted (if it was mounted) or after whateve
Pinpointing I/O bottlenecks on Linux | Dirty Cache Bart, This is a great! Helped me a lot to understand the various aspects of performance. One thing I would like to ask you is what are the factors that affect write response time of a meta on a VMAX? Currently I am facing a situation wherein SPA shows the
