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<channel>
	<title>微米天空</title>
	<atom:link href="http://www.micronsky.com/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.micronsky.com</link>
	<description>人，因思则变。</description>
	<lastBuildDate>Tue, 27 Dec 2011 15:55:42 +0000</lastBuildDate>
	<language>en</language>
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		<item>
		<title>awk -F”[[]]”和awk -F”[][]“分割出的串为什么不一样?</title>
		<link>http://www.micronsky.com/2011/12/awk-f%e5%92%8cawk-f%e5%88%86%e5%89%b2%e5%87%ba%e7%9a%84%e4%b8%b2%e4%b8%ba%e4%bb%80%e4%b9%88%e4%b8%8d%e4%b8%80%e6%a0%b7/</link>
		<comments>http://www.micronsky.com/2011/12/awk-f%e5%92%8cawk-f%e5%88%86%e5%89%b2%e5%87%ba%e7%9a%84%e4%b8%b2%e4%b8%ba%e4%bb%80%e4%b9%88%e4%b8%8d%e4%b8%80%e6%a0%b7/#comments</comments>
		<pubDate>Mon, 19 Dec 2011 09:31:04 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[awk]]></category>
		<category><![CDATA[分隔符]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=762</guid>
		<description><![CDATA[按理说 -F”[]“,[]表示匹配括号中的任何一个字符，[]中间的字符应该是和顺序无关的，可是我实验的结果却不一样，这是为什么呢？
&#160;
echo “1[2]3[4]” &#124; awk -F”[\\\\[\\\\]]” &#8216;{print $1,$2,$3,$4}&#8217;
&#160;
有时候用6个^做分隔符的时候，就需要采用awk -F”[\\\\^\\\\^\\\\^\\\\^\\\\^\\\\^]” &#8216;{print $1}&#8217;
]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/12/awk-f%e5%92%8cawk-f%e5%88%86%e5%89%b2%e5%87%ba%e7%9a%84%e4%b8%b2%e4%b8%ba%e4%bb%80%e4%b9%88%e4%b8%8d%e4%b8%80%e6%a0%b7/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>针对苹果关闭老版本固件验证的刷机解决方案</title>
		<link>http://www.micronsky.com/2011/12/%e9%92%88%e5%af%b9%e8%8b%b9%e6%9e%9c%e5%85%b3%e9%97%ad%e8%80%81%e7%89%88%e6%9c%ac%e5%9b%ba%e4%bb%b6%e9%aa%8c%e8%af%81%e7%9a%84%e5%88%b7%e6%9c%ba%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88/</link>
		<comments>http://www.micronsky.com/2011/12/%e9%92%88%e5%af%b9%e8%8b%b9%e6%9e%9c%e5%85%b3%e9%97%ad%e8%80%81%e7%89%88%e6%9c%ac%e5%9b%ba%e4%bb%b6%e9%aa%8c%e8%af%81%e7%9a%84%e5%88%b7%e6%9c%ba%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88/#comments</comments>
		<pubDate>Wed, 14 Dec 2011 13:32:25 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Centos]]></category>
		<category><![CDATA[iphone]]></category>
		<category><![CDATA[ota]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=714</guid>
		<description><![CDATA[由于苹果前几日放出4.2.9的新版本固件,紧接着关闭4.2.8固件的刷机验证,导致大家不能再刷官方固件和自制固件,某些地区写号需要越狱并且更新prl,所以发布该教程。
特别声明几点:

新教程中所有固件均为官方固件,大家不需要再去刷之前我做的自制固件(自制固件有手写问题)!
如果想保留号码,按照本教程操作即可.
如果不想保留号码,想抹除号码,请在刷完固件后越狱之前,进入 设置-&#62; 还原 –&#62;  [...]]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/12/%e9%92%88%e5%af%b9%e8%8b%b9%e6%9e%9c%e5%85%b3%e9%97%ad%e8%80%81%e7%89%88%e6%9c%ac%e5%9b%ba%e4%bb%b6%e9%aa%8c%e8%af%81%e7%9a%84%e5%88%b7%e6%9c%ba%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>select into outfile 语法</title>
		<link>http://www.micronsky.com/2011/12/select-into-outfile-%e8%af%ad%e6%b3%95/</link>
		<comments>http://www.micronsky.com/2011/12/select-into-outfile-%e8%af%ad%e6%b3%95/#comments</comments>
		<pubDate>Tue, 06 Dec 2011 08:44:24 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Mysql]]></category>
		<category><![CDATA[mysql]]></category>
		<category><![CDATA[mysqldump]]></category>
		<category><![CDATA[outfile]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=711</guid>
		<description><![CDATA[select email into outfile “test.txt” from email;
select substring(boss,0,2),addr from guest; 
LOAD DATA [LOW_PRIORITY &#124; CONCURRENT] [LOCAL]  INFILE “/opt/abc.txt” INTO TABLE table_name FIELDS TERMINATED BY &#8216;,&#8217; (column1, column2,colum3);
mysql SELECT * FROM table1 INTO OUTFILE &#8216;data.txt&#8217;
FIELDS  [...]]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/12/select-into-outfile-%e8%af%ad%e6%b3%95/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>用mysqlbinlog查看row格式的事件 zt</title>
		<link>http://www.micronsky.com/2011/11/%e7%94%a8mysqlbinlog%e6%9f%a5%e7%9c%8brow%e6%a0%bc%e5%bc%8f%e7%9a%84%e4%ba%8b%e4%bb%b6-zt/</link>
		<comments>http://www.micronsky.com/2011/11/%e7%94%a8mysqlbinlog%e6%9f%a5%e7%9c%8brow%e6%a0%bc%e5%bc%8f%e7%9a%84%e4%ba%8b%e4%bb%b6-zt/#comments</comments>
		<pubDate>Fri, 18 Nov 2011 07:19:58 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Mysql]]></category>
		<category><![CDATA[decode]]></category>
		<category><![CDATA[mysql]]></category>
		<category><![CDATA[mysqlbinlog]]></category>
		<category><![CDATA[RBR]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=706</guid>
		<description><![CDATA[MySQL 5.1开始，binlog支持row-based的格式，默认情况下只能看到一些经过base-64编码的信息，如
DELIMITER /*!*/;
# at 7493962
#090827 5:25:03 server id 1 end_log_pos 0 Start: binlog v 4, server v 5.1.26-rc-community-log created 090827 5:25:03
BINLOG  [...]]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/11/%e7%94%a8mysqlbinlog%e6%9f%a5%e7%9c%8brow%e6%a0%bc%e5%bc%8f%e7%9a%84%e4%ba%8b%e4%bb%b6-zt/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>while循环中碰到ssh的话,如何避免退出 zt</title>
		<link>http://www.micronsky.com/2011/11/while%e5%be%aa%e7%8e%af%e4%b8%ad%e7%a2%b0%e5%88%b0ssh%e7%9a%84%e8%af%9d%e5%a6%82%e4%bd%95%e9%81%bf%e5%85%8d%e9%80%80%e5%87%ba-zt/</link>
		<comments>http://www.micronsky.com/2011/11/while%e5%be%aa%e7%8e%af%e4%b8%ad%e7%a2%b0%e5%88%b0ssh%e7%9a%84%e8%af%9d%e5%a6%82%e4%bd%95%e9%81%bf%e5%85%8d%e9%80%80%e5%87%ba-zt/#comments</comments>
		<pubDate>Mon, 14 Nov 2011 09:14:10 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[SSH]]></category>
		<category><![CDATA[while]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=702</guid>
		<description><![CDATA[先看一个例子:
#!/bin/sh
. /root/.bash_profile

cat /home/yejr/alldb&#124;while read LINE
do
   #取得IP和组号
   IP=`echo $LINE &#124; awk '{print $1}'`
   NU=`echo $LINE &#124; awk '{print $2}' &#124; awk -F '-' '{print $1}'`

   cnt=`ssh root@$IP "mysql -e 'select count(*) from yejr.tbl1'&#124;tail -n 1"`

   echo "$IP $NU  [...]]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/11/while%e5%be%aa%e7%8e%af%e4%b8%ad%e7%a2%b0%e5%88%b0ssh%e7%9a%84%e8%af%9d%e5%a6%82%e4%bd%95%e9%81%bf%e5%85%8d%e9%80%80%e5%87%ba-zt/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>MYSQL数值类型INT，SMALLINT,BIGINT,MEDIUMINT,FLOAT的相关说明，存储大小等！ zt</title>
		<link>http://www.micronsky.com/2011/11/mysql%e6%95%b0%e5%80%bc%e7%b1%bb%e5%9e%8bint%ef%bc%8csmallintbigintmediumintfloat%e7%9a%84%e7%9b%b8%e5%85%b3%e8%af%b4%e6%98%8e%ef%bc%8c%e5%ad%98%e5%82%a8%e5%a4%a7%e5%b0%8f%e7%ad%89%ef%bc%81-zt/</link>
		<comments>http://www.micronsky.com/2011/11/mysql%e6%95%b0%e5%80%bc%e7%b1%bb%e5%9e%8bint%ef%bc%8csmallintbigintmediumintfloat%e7%9a%84%e7%9b%b8%e5%85%b3%e8%af%b4%e6%98%8e%ef%bc%8c%e5%ad%98%e5%82%a8%e5%a4%a7%e5%b0%8f%e7%ad%89%ef%bc%81-zt/#comments</comments>
		<pubDate>Mon, 14 Nov 2011 09:03:07 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Mysql]]></category>
		<category><![CDATA[mysql]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=699</guid>
		<description><![CDATA[MySQL支持所有标准SQL数值数据类型。这些类型包括严格数值数据类型(INTEGER、SMALLINT、DECIMAL和NUMERIC)，以及近似数值数据类型(FLOAT、REAL和DOUBLE  [...]]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/11/mysql%e6%95%b0%e5%80%bc%e7%b1%bb%e5%9e%8bint%ef%bc%8csmallintbigintmediumintfloat%e7%9a%84%e7%9b%b8%e5%85%b3%e8%af%b4%e6%98%8e%ef%bc%8c%e5%ad%98%e5%82%a8%e5%a4%a7%e5%b0%8f%e7%ad%89%ef%bc%81-zt/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>通过 chrome://sync-internals/ 了解 Chrome 同步细节 zt</title>
		<link>http://www.micronsky.com/2011/11/%e9%80%9a%e8%bf%87-chromesync-internals-%e4%ba%86%e8%a7%a3-chrome-%e5%90%8c%e6%ad%a5%e7%bb%86%e8%8a%82-zt/</link>
		<comments>http://www.micronsky.com/2011/11/%e9%80%9a%e8%bf%87-chromesync-internals-%e4%ba%86%e8%a7%a3-chrome-%e5%90%8c%e6%ad%a5%e7%bb%86%e8%8a%82-zt/#comments</comments>
		<pubDate>Mon, 14 Nov 2011 01:49:08 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Browsers]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=695</guid>
		<description><![CDATA[&#160;
&#160;

Chrome的同步功能可能是最让大家兴奋的功能，依托于Google强大的云端技术支持，你可以在各个电脑安装的Chrome浏览器之间同步网页应用、扩展、主题、自动填充、设置、密码、书签等等数据。但有时候你可能发现同步很慢，或是出错，此时你可以在地址栏输入 chrome://sync-internals/  [...]]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/11/%e9%80%9a%e8%bf%87-chromesync-internals-%e4%ba%86%e8%a7%a3-chrome-%e5%90%8c%e6%ad%a5%e7%bb%86%e8%8a%82-zt/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>MySQL 执行load data infile时同步原理及注意事项</title>
		<link>http://www.micronsky.com/2011/11/mysql-%e6%89%a7%e8%a1%8cload-data-infile%e6%97%b6%e5%90%8c%e6%ad%a5%e5%8e%9f%e7%90%86%e5%8f%8a%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a1%b9/</link>
		<comments>http://www.micronsky.com/2011/11/mysql-%e6%89%a7%e8%a1%8cload-data-infile%e6%97%b6%e5%90%8c%e6%ad%a5%e5%8e%9f%e7%90%86%e5%8f%8a%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a1%b9/#comments</comments>
		<pubDate>Thu, 10 Nov 2011 02:50:59 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Mysql]]></category>
		<category><![CDATA[load data]]></category>
		<category><![CDATA[mysql]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=691</guid>
		<description><![CDATA[
   Master上执行
      mysql&#62; load data INFILE &#8216;/tmp/del_proid.txt&#8217; INTO table del_proid;
   在Binlog中记录的SQL是这样的
      load data LOCAL INFILE &#8216;/tmp/SQL_LOAD_MB-1-0&#8242; INTO table del_proid
   并且在/tmp目录中也确实出现了这个文件，内容和del_proid.txt一模一样

   同步时，Master的Binlog  [...]]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/11/mysql-%e6%89%a7%e8%a1%8cload-data-infile%e6%97%b6%e5%90%8c%e6%ad%a5%e5%8e%9f%e7%90%86%e5%8f%8a%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a1%b9/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>按格式批量修改文件名</title>
		<link>http://www.micronsky.com/2011/10/%e6%8c%89%e6%a0%bc%e5%bc%8f%e6%89%b9%e9%87%8f%e4%bf%ae%e6%94%b9%e6%96%87%e4%bb%b6%e5%90%8d/</link>
		<comments>http://www.micronsky.com/2011/10/%e6%8c%89%e6%a0%bc%e5%bc%8f%e6%89%b9%e9%87%8f%e4%bf%ae%e6%94%b9%e6%96%87%e4%bb%b6%e5%90%8d/#comments</comments>
		<pubDate>Thu, 20 Oct 2011 06:59:06 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[mv]]></category>
		<category><![CDATA[rename]]></category>
		<category><![CDATA[批量]]></category>

		<guid isPermaLink="false">http://a29984365.gotoip1.com/?p=684</guid>
		<description><![CDATA[按固定格式批量修改文件名，如：
XXX-001.txt
XXX-002.txt
XXX-003.txt
&#160;
首先进入文件目录，然后利用语句；如果不是在文件目录下，就得改下命令，在mv时，新旧文件都能有对应的绝对路径。
&#160;
for $file (`ls x*`){chomp $file;$new=sprintf “XXX-%03d.txt”,++$i;system “mv”,”$file”,”$new”}
]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/10/%e6%8c%89%e6%a0%bc%e5%bc%8f%e6%89%b9%e9%87%8f%e4%bf%ae%e6%94%b9%e6%96%87%e4%bb%b6%e5%90%8d/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>加速 MySQL 导入导出的方法</title>
		<link>http://www.micronsky.com/2011/04/%e5%8a%a0%e9%80%9f-mysql-%e5%af%bc%e5%85%a5%e5%af%bc%e5%87%ba%e7%9a%84%e6%96%b9%e6%b3%95/</link>
		<comments>http://www.micronsky.com/2011/04/%e5%8a%a0%e9%80%9f-mysql-%e5%af%bc%e5%85%a5%e5%af%bc%e5%87%ba%e7%9a%84%e6%96%b9%e6%b3%95/#comments</comments>
		<pubDate>Mon, 18 Apr 2011 07:12:37 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Linux]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=679</guid>
		<description><![CDATA[MySQL导出的SQL语句在导入时有可能会非常非常慢，在处理百万级数据的时候，可能导入要花几小时。在导出时合理使用几个参数，可以大大加快导 入的速度。
-e 使用包括几个VALUES列表的多行INSERT语法;
&#8211;max_allowed_packet=XXX 客户端/服务器之间通信的缓存区的最大大小;
&#8211;net_buffer_length=XXX TCP/IP和套接字通信缓冲区大小,创建长度达net_buffer_length的行。
注意：max_allowed_packet 和 net_buffer_length 不能比目标数据库的设定数值  [...]]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/04/%e5%8a%a0%e9%80%9f-mysql-%e5%af%bc%e5%85%a5%e5%af%bc%e5%87%ba%e7%9a%84%e6%96%b9%e6%b3%95/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>获得Shell脚本所在目录的绝对路径</title>
		<link>http://www.micronsky.com/2011/04/%e8%8e%b7%e5%be%97shell%e8%84%9a%e6%9c%ac%e6%89%80%e5%9c%a8%e7%9b%ae%e5%bd%95%e7%9a%84%e7%bb%9d%e5%af%b9%e8%b7%af%e5%be%84/</link>
		<comments>http://www.micronsky.com/2011/04/%e8%8e%b7%e5%be%97shell%e8%84%9a%e6%9c%ac%e6%89%80%e5%9c%a8%e7%9b%ae%e5%bd%95%e7%9a%84%e7%bb%9d%e5%af%b9%e8%b7%af%e5%be%84/#comments</comments>
		<pubDate>Mon, 18 Apr 2011 02:52:21 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[Shell]]></category>
		<category><![CDATA[路径]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=676</guid>
		<description><![CDATA[要得到正在执行的程序/脚本自身所存放的绝对路径，在 PHP 里面可以用 dirname(realpath(__FILE__)) ； C#  则有 System.Windows.Forms.Application.StartupPath ； java  似乎没有什么比较直接的方法，只能利用  CodeSource 来间接获取 。而在 linux shell  脚本里面如果想得到当前脚本文件存放的绝对路径，也没有太现成的命令可以调用，不过可以通过下面的语句来获取：
baseDirForScriptSelf=$(cd  “$(dirname “$0&#8243;)”; pwd)
echo  [...]]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/04/%e8%8e%b7%e5%be%97shell%e8%84%9a%e6%9c%ac%e6%89%80%e5%9c%a8%e7%9b%ae%e5%bd%95%e7%9a%84%e7%bb%9d%e5%af%b9%e8%b7%af%e5%be%84/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>如何恢复Firefox内建的关闭窗口提示时是否保存标签页的功能？</title>
		<link>http://www.micronsky.com/2011/03/%e5%a6%82%e4%bd%95%e6%81%a2%e5%a4%8dfirefox%e5%86%85%e5%bb%ba%e7%9a%84%e5%85%b3%e9%97%ad%e7%aa%97%e5%8f%a3%e6%8f%90%e7%a4%ba%e6%97%b6%e6%98%af%e5%90%a6%e4%bf%9d%e5%ad%98%e6%a0%87%e7%ad%be%e9%a1%b5/</link>
		<comments>http://www.micronsky.com/2011/03/%e5%a6%82%e4%bd%95%e6%81%a2%e5%a4%8dfirefox%e5%86%85%e5%bb%ba%e7%9a%84%e5%85%b3%e9%97%ad%e7%aa%97%e5%8f%a3%e6%8f%90%e7%a4%ba%e6%97%b6%e6%98%af%e5%90%a6%e4%bf%9d%e5%ad%98%e6%a0%87%e7%ad%be%e9%a1%b5/#comments</comments>
		<pubDate>Fri, 18 Mar 2011 02:33:10 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Browsers]]></category>
		<category><![CDATA[Firefox]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=671</guid>
		<description><![CDATA[原来关闭火狐时会弹出一个
“您想允许Firefox保存您的标签页并在下次启动时打开它们吗？”的窗口
但在一次关闭时不小心选了“不再询问”，从此它就再也不出来了！！该怎么恢复呢？

解决方法：
在地址栏中输入：
about:config
进入设置，搜索并修改
browser.startup.page=1
即可。
]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/03/%e5%a6%82%e4%bd%95%e6%81%a2%e5%a4%8dfirefox%e5%86%85%e5%bb%ba%e7%9a%84%e5%85%b3%e9%97%ad%e7%aa%97%e5%8f%a3%e6%8f%90%e7%a4%ba%e6%97%b6%e6%98%af%e5%90%a6%e4%bf%9d%e5%ad%98%e6%a0%87%e7%ad%be%e9%a1%b5/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>make -j 的并行任务个数选择</title>
		<link>http://www.micronsky.com/2011/03/make-j-%e7%9a%84%e5%b9%b6%e8%a1%8c%e4%bb%bb%e5%8a%a1%e4%b8%aa%e6%95%b0%e9%80%89%e6%8b%a9/</link>
		<comments>http://www.micronsky.com/2011/03/make-j-%e7%9a%84%e5%b9%b6%e8%a1%8c%e4%bb%bb%e5%8a%a1%e4%b8%aa%e6%95%b0%e9%80%89%e6%8b%a9/#comments</comments>
		<pubDate>Tue, 15 Mar 2011 02:56:57 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[make]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=669</guid>
		<description><![CDATA[在多CPU上编译Linux内核时可以用 make -jn 多个任务并行编译加快速度。印象中在某个文档看到过 n 选择为 ncpu +  1，但不清楚理论依据何在。查了一下也没看到这个说法的原始来源，因此在一个四核的CPU上做了一下简单的测试，结论是在 n 等于 CPU  个数时的速度最快。下面是结果数据：


n system user real
1 52.477 662.534 693.391
2 48.227 606.096 318.699
3 40.066 500.220 184.886
4 38.619 474.832 140.242
5 38.360 479.650  [...]]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/03/make-j-%e7%9a%84%e5%b9%b6%e8%a1%8c%e4%bb%bb%e5%8a%a1%e4%b8%aa%e6%95%b0%e9%80%89%e6%8b%a9/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>CentOS yum 更新 网易源(mirrors.163.com)</title>
		<link>http://www.micronsky.com/2011/03/centos-yum-%e6%9b%b4%e6%96%b0-%e7%bd%91%e6%98%93%e6%ba%90mirrors-163-com/</link>
		<comments>http://www.micronsky.com/2011/03/centos-yum-%e6%9b%b4%e6%96%b0-%e7%bd%91%e6%98%93%e6%ba%90mirrors-163-com/#comments</comments>
		<pubDate>Sun, 06 Mar 2011 05:40:06 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[CentOS]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=666</guid>
		<description><![CDATA[如果你安装了CentOS系统，并且yum更新慢的话，可以考虑将更新源更换为 网易提供的源：mirrors.163.com
具体操作如下：
cd /etc/yum.repos.d/
mv CentOS-Base.repo CentOS-Base.repo.bak
vi CentOS-Base.repo
加入如下内容：
CentOS-Base.repo

# CentOS-Base.repo 
# 
# This file uses a new mirrorlist system developed by Lance Davis for CentOS. 
# The mirror system  [...]]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/03/centos-yum-%e6%9b%b4%e6%96%b0-%e7%bd%91%e6%98%93%e6%ba%90mirrors-163-com/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>让firefox下载不进行病毒扫描</title>
		<link>http://www.micronsky.com/2011/02/%e8%ae%a9firefox%e4%b8%8b%e8%bd%bd%e4%b8%8d%e8%bf%9b%e8%a1%8c%e7%97%85%e6%af%92%e6%89%ab%e6%8f%8f/</link>
		<comments>http://www.micronsky.com/2011/02/%e8%ae%a9firefox%e4%b8%8b%e8%bd%bd%e4%b8%8d%e8%bf%9b%e8%a1%8c%e7%97%85%e6%af%92%e6%89%ab%e6%8f%8f/#comments</comments>
		<pubDate>Wed, 16 Feb 2011 03:12:12 +0000</pubDate>
		<dc:creator>东木</dc:creator>
				<category><![CDATA[Browsers]]></category>
		<category><![CDATA[Firefox]]></category>

		<guid isPermaLink="false">http://www.micronsky.com/?p=664</guid>
		<description><![CDATA[每次用Firefox下载完图片或者其他文件的时,总是自作聪明自动扫描病毒，很浪费资源和时间.
去除方法:
   在地址栏输入about:config，找到Browser.download.manager.scanWhenDone，双击设置为false
]]></description>
		<wfw:commentRss>http://www.micronsky.com/2011/02/%e8%ae%a9firefox%e4%b8%8b%e8%bd%bd%e4%b8%8d%e8%bf%9b%e8%a1%8c%e7%97%85%e6%af%92%e6%89%ab%e6%8f%8f/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
	</channel>
</rss>

