wd wrote: total used free shared buffers cached Mem: 2060800 2014004 46796 0 104516 1670392 -/+ buffers/cache: 239096 1821704 这台机器上只起了MYSQL和APACHE，但没有人访问。那我的空余内存是多少？是 1821704？？？
>Dear flute, > >Mem: 2060800K total, 2016780K used, 44020K free, 104152K buffers > >看实际用掉的应该是used-buffers=2016780-104152吧？ > > >----------------------- Original Message ----------------------- >On Mon, 11 Apr 2005 11:57:50 +0800 >flute <[EMAIL PROTECTED]> wrote: > > > >>Xing-qiang Lu wrote: >>那我如何监控内存的使用状态？只看free是不行了。 >> >> >> >>>Linux内存管理本来就是这样吧，空闲的内存基本都用作cache，不管内存有多大，显示的占用量总是80以上的样子。这样才能提高内存的利用率，没必要向在windows下那样追求低的内存利用率。 >>> >>>On Apr 10, 2005 6:23 PM, Alsor Zhou <[EMAIL PROTECTED]> wrote: >>> >>> >>> >>> >>>>flute 写道: >>>> >>>> >>>> >>>> >>>>>我有一个机器，有2G内存。是做测试用的。现在使用没有问题，但是我用TOP看到： >>>>>Mem: 2060800K total, 2016780K used, 44020K free, 104152K buffers >>>>>Swap: 2000084K total, 164K used, 1999920K free, 1670376K cached >>>>>1.6G的内存被CACHED掉了，这部分内存是怎么分配的？被谁用了？全都用了吗？ >>>>> >>>>> >>>>> >>>>> >>>>被使用过的page并不是马上被释放的,而是被mark 成dirty, 链入cached list, 等 >>>>到真正 需要 的时候再进行回收.. >>>>可以参见 情景分析 中对内存管理 部分的描述.. >>>> >>>>Best regards, >>>>az >>>> >>>> >>>> >>>>-- >>>>To UNSUBSCRIBE, email to [EMAIL PROTECTED] >>>>with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] >>>> >>>> >>>> >>>> >>>> >>>> >>> >>> >>> >>> >>-- >>To UNSUBSCRIBE, email to [EMAIL PROTECTED] >>with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] >> >> >> > > >--------------------- Original Message Ends -------------------- >----- >wd <wd#caphbook.com> >2005-4-11 12:06:17 > > > > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
