BEAUTY AND PLAY
What is a Dirtied inode It is a common computer term that data in a cache is “clean” when it has been synchronized, and “dirty” when it is different. A dirty inode has had new data written into it but it has not been written to disk. source : http://serverfault.com/questions/56374/dirtied-inode dirty_inode: this method is called …
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The atime and noatime attribute Linux records information about when files were created and last modified as well as when it was last accessed. There is a cost associated with recording the last access time. The ext2 file system of Linux has an attribute that allows the super-user to mark individual files such that their …
$time php bubble.php real 0m0.846s user 0m0.388s sys 0m0.036s $time php bubble.php real 0m0.707s user 0m0.368s sys 0m0.032s $time php bubble.php real 0m0.718s user 0m0.384s sys 0m0.024s $time php bubble.php real 0m0.768s user 0m0.372s sys 0m0.036s $time php bubble.php real 0m0.556s user 0m0.432s sys 0m0.024s $time php bubble.php real 0m0.476s user 0m0.372s sys 0m0.040s $time …
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When this flag is set, Linux reports all disk read and write operations that take place, and all block dirtyings done to files. This makes it possible to debug why a disk needs to spin up, and to increase battery life even more. The output of block_dump is written to the kernel output, and it …
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A UNIX Command $lsattr test.ogg ——————- test.ogg $chattr +u test.ogg $lsattr test.ogg -u—————– test.ogg $chattr -u test.ogg $lsattr test.ogg ——————- test.ogg $chattr =u test.ogg $lsattr test.ogg -u—————– test.ogg $chattr +i test.ogg chattr: Operation not permitted while setting flags on test.ogg $sudo chattr +i test.ogg [sudo] password for jeffrin: $lsattr test.ogg -u–i————– test.ogg $rm test.ogg rm: …
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$time php bubble.php real 0m0.366s user 0m0.212s sys 0m0.032s $time php bubble.php real 0m0.231s user 0m0.188s sys 0m0.020s $time php bubble.php real 0m0.191s user 0m0.132s sys 0m0.040s $time php bubble.php real 0m0.192s user 0m0.148s sys 0m0.028s $time php bubble.php real 0m0.190s user 0m0.140s sys 0m0.032s $time php bubble.php real 0m0.191s user 0m0.144s sys 0m0.028s $time …
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$time php bubble.php real 0m0.318s user 0m0.068s sys 0m0.040s $time php bubble.php real 0m0.171s user 0m0.092s sys 0m0.032s $time php bubble.php real 0m0.169s user 0m0.084s sys 0m0.036s $time php bubble.php real 0m0.153s user 0m0.072s sys 0m0.036s $time php bubble.php real 0m0.154s user 0m0.080s sys 0m0.032s $time php bubble.php real 0m0.145s user 0m0.080s sys 0m0.024s $time …
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$time php bubble.php real 0m0.133s user 0m0.084s sys 0m0.028s $
while (same_count — ) *wordp++ = (*prevp++); size= UNSEQBUFSIZE – ( wordp -word ); ………..
case 10: flags |= MAGIC_APPLE ; break; |= Bitwise OR and assign