Major Description
When using the transform in the plugins, the query results from traffic_line is incorrect.
For example,add a transform at read response hook,then the growth of proxy.node.http.origin_server_total_response_bytes will becomes very slow.
test :
origin server:127.0.0.1:80(nginx);
ats(4.2.0) never-cache;
qps:25
request file: 25M
Tsar is a tool,qurey results by traffic_line.
[root@ats plugins]# http_load -proxy 127.0.0.1:8080 -p 50 -seconds 120 /root/test.txt
[root@ats plugins]#cat /root/test.txt
http://127.0.0.1/vlive.qqvideo.tc.qq.com/2.mp4
the results using transform(used example/null-transform,do nothing):
[root@ats plugins]# tsar --ts --ts_os -l
---ts----- -ts_os-------
qps Bps qps Bps
4.00 112.8M 4.00 964.00
4.20 112.8M 4.20 964.00
3.80 107.2M 3.80 915.80
4.20 112.8M 4.20 964.00
3.80 107.2M 3.80 915.80
4.00 107.2M 4.00 915.80
4.00 112.8M 4.00 964.00
4.00 107.2M 4.00 915.80
4.00 112.8M 4.00 964.00
4.20 112.8M 4.20 964.00
4.20 118.4M 4.20 1.0K
4.20 112.8M 4.20 964.00
4.20 118.4M 4.20 1.0K
4.00 107.2M 4.00 915.80
```
without transform:
```
[root@ats plugins]# tsar --ts --ts_os -l
---ts--- -ts_os-------
qps Bps qps Bps
25.60 716.3M 25.60 716.3M
24.60 693.7M 24.60 693.7M
25.20 705.0M 25.20 705.0M
24.80 699.4M 24.80 699.4M
25.60 716.3M 25.60 716.3M
25.00 705.0M 25.00 705.0M
25.40 710.7M 25.40 710.7M
24.80 699.4M 24.80 699.4M
25.00 699.4M 25.00 699.4M
24.60 693.7M 24.60 693.7M
```