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authorhuangzh <huangzh.bri@chinatelecom.cn>2018-11-07 11:45:38 +0800
committerhuangzh <huangzh.bri@chinatelecom.cn>2018-11-08 10:57:13 +0800
commit1ff97d639e631fe7465038d76e093bc5c1a31867 (patch)
treed3f4aa2144043930c2fee7073a22e45a9f41805b /vcpe_beijing/vcpe/pressure/control.sh
parent4d96698b0cc2b738685482c8a8971f21b143b27e (diff)
new add s3p test scripte
Change-Id: I84b933c017ad7cee12e70da868e8dea1dd9f348b Issue-ID: INT-714 Signed-off-by: huangzh <huangzh.bri@chinatelecom.cn>
Diffstat (limited to 'vcpe_beijing/vcpe/pressure/control.sh')
-rw-r--r--vcpe_beijing/vcpe/pressure/control.sh25
1 files changed, 25 insertions, 0 deletions
diff --git a/vcpe_beijing/vcpe/pressure/control.sh b/vcpe_beijing/vcpe/pressure/control.sh
new file mode 100644
index 0000000..65c9bc4
--- /dev/null
+++ b/vcpe_beijing/vcpe/pressure/control.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+start_time=`date +%s` #定义脚本运行的开始时间
+[ -e /tmp/fd1 ] || mkfifo /tmp/fd1 #创建有名管道
+exec 3<>/tmp/fd1 #创建文件描述符,以可读(<)可写(>)的方式关联管道文件,这时候文件描述符3就有了有名管道文件的所有特性
+rm -rf /tmp/fd1 #关联后的文件描述符拥有管道文件的所有特性,所以这时候管道文件可以删除,我们留下文件描述符来用就可以了
+for ((i=1;i<=1000;i++))
+do
+ echo >&3 #&3代表引用文件描述符3,这条命令代表往管道里面放入了一个"令牌"
+done
+
+for ((i=1;i<=10000;i++))
+do
+read -u3 #代表从管道中读取一个令牌
+{
+ echo 'success'$i &
+ echo >&3 #代表我这一次命令执行到最后,把令牌放回管道
+}&
+done
+wait
+
+stop_time=`date +%s` #定义脚本运行的结束时间
+
+echo "TIME:`expr $stop_time - $start_time`"
+exec 3<&- #关闭文件描述符的读
+exec 3>&- #关闭文件描述符的写