Jiaquan He

Tsinghua University

OSCenter

A graduate student

衣服
短袖(3~4) 4
长袖(3) 7外4里
羽绒服(厚薄) 1薄
内裤袜子(4) 足量
外套(2) 2厚
衬衫 不需要
毛衣 3
西装 不需要
凉鞋
皮鞋 不需要
皮带 1
太阳镜去到买
床上
被子
被套
枕巾
被单
卫生用品
肥皂盒 不需要
脸盆 不需要
牙膏牙刷
梳子 去到买
剃须刀
指甲刀
电脑
Mac
iPad
USB线
移动硬盘
网线 不需要
其他:
保温杯 找不到,去到买
雨伞
接线板
插座转换接头
针线盒 不需要
剪刀 不需要
螺丝刀 不需要
电池 不需要
刷子 不需要
小镜子 不需要
樟脑球 不需要
文具 不需要
笔记本 不需要
乒乓球拍
防晒霜 不需要
药品:
抗生素
眼药膏
止泻药
驱蚊止痒药
去火药
感冒药
消化不良
过敏
止痛
运动伤
皮炎
创口贴
棉花纱布
棉签
体温计

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An Algorithm for Fun

Today we three were very boring. So boring that we casually made out a question. We have n characters (just suppose n <= 26 and they are 'a', 'b', ... 'a' + n - 1). What is the kth plalindrome formed by that n characters unduplicatedly? (It is OK only if one char is duplicated because of palindrome, that is to say, each charater can appear at most twice).

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LKP Tests Notes

LKP-Tests is a linux kernel performance testing framework authored by Fengguang Wu @ Intel.

Codes gitted from

git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git

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Something about Cache

Currently I'm optimizing the performance of the well-known in-memory key-value server - redis, from the system and network perspectives.

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Some Net-related Features

During my internship, I learn some network related features from SINA. Sometimes they make a difference to the performance if they are taken into consideraion while tuning.

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Forwarding Information Base

In the IPv4 routing subsystem, several critical structures should be discussed.

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