BUFFERABLE CACHEABLE
摘要：根据程序的局部性原理，在主存与CPU之间设置的一个高速的容量较小的存储器，叫做cache。 ARM cache架构由cache存储器和写缓冲器(write-buffer)组成。其中Write_buffer是cache按照FIFO原则向主存写的缓冲器。 cache可以分为Dcache，Icache。分
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posted @ 2022-05-31 11:43
05 2022 档案
cat /proc/6020/maps 和vdso
摘要：cat /proc/6020/maps [root@bogon ~]# cat /proc/15660/maps | grep vdso ffff9c4b0000-ffff9c4c0000 r-xp 00000000 00:00 0 [vdso] [root@bogon ~]# ffff84d600
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posted @ 2022-05-28 20:56
unmatched/skipped datagrams
摘要：发送的报文index和接收到的index不匹配 skipped datagrams mean, that the datagram is sent again, although the answer to the last sending hasn't been received yet. Thi
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posted @ 2022-05-20 21:02
warning: integer overflow in expression [-Woverflow]
摘要：[root@centos7 ~]# gcc main.c -o main main.c: In function ‘main’: main.c:9:27: warning: integer overflow in expression [-Woverflow] u_int64_t total = 2
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posted @ 2022-05-18 19:44
chrt更改进程优先级和wak
摘要：#!/bin/bash # chrt.sh process='stress --io' #process=$1 pid=$(ps x | grep "${process}" | grep -v grep | awk '{print $1}') echo $pid for element in ${p
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posted @ 2022-05-05 20:17
