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go die
自私还好, 双标更烦
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install systemtap
http://r00tkit.me/?p=59 #!/bin/bash WEB="http://debuginfo.centos.org/6/i386/" RELEASE=`uname -r` MACHINE=`uname -m` PKG1="kernel-debuginfo-$RELEASE.rpm" PKG2="kernel-debuginfo-common-$MACHINE-$RELEASE.rpm" wget $WEB$PKG1 wget $WEB$PKG2 #Build Downloaded debuginfo packages rpm -Uhv kernel-debuginfo-*.rpm #Install systemtap and kernel-developemnt packages yum install systemtap kernel-devel
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kafka中Server返回的correlationID
原来kafka server返回的correlationID并不是对应的request中的, 而是依次增加的? 哦, 搞错了. 是对应request里面的.
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golang里面string是传值还是传引用
结论: 传值, 会copy一份新数据 package main import "fmt" func byval(q string) { fmt.Printf("3. byval -- q %T: &q=%p q=%v\n", q, &q, q) q = "xyz" fmt.Printf("4. byval -- q %T: &q=%p...
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changetime和modifytime的区别
https://stackoverflow.com/questions/3385203/regarding-access-time-unix The stat(2) structure keeps track of all the file date/times: struct stat { dev_t st_dev; /* ID of device containing file */ ino_t st_ino; /* inode number */ mode_t...
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mmap的两篇文章
http://blog.csdn.net/streetlight8023/article/details/42168403 http://0xffffff.org/2017/05/01/41-linux-io/ mmap和磁盘读写的两篇文章, 不过还是没明白为啥堆外内存小的时候, ES使用mmap index storage会有大量磁盘读写
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mail中的Content-Transfer-Encoding定义和用法
python发送邮件时出现乱码, 搜索了一下可以通过更改Content-Transfer-Encoding定义解决. msg = MIMEText(None, "plain") msg.replace_header('content-transfer-encoding', 'quoted-printable') msg.set_payload(content, 'utf-8') https://stackoverflow.com/questions/25710599/content-transfer-encoding-7bit-or-8-bit https://www.w3.org/Protocols/rfc1341/5_Content-Transfer-Encoding.html
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vm
https://www.kernel.org/doc/Documentation/sysctl/vm.txt留着后面看
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可是
可是, 我看到微信有消息, 还是希望是你的.
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在身边
看到这张照片好开心, 有种”一直在身边”的感觉.