Analyzer ngx-req-latency-us
Name
ngx-req-latency-us - Nginx Request Latency
Resource Category
Latency.
Application Type & Technical Stack
- OpenResty
Parameters
The following parameters (or global variables) can be overridden by the user when running the analyzer or tool:
need_packets
Type: bool
Description: Also capture the network packets of the matched requests
Default Value: None
sample_time
Type: int
Description: sample time(second)
Default Value: 30
buffer_size
Type: int
Description: buffer size for capturing packets in MB.
Default Value: 50
snap_len
Type: int
Description: max capture bytes of the packet
Default Value: 68
req_status
Type: int
Description: Interested Request Status, default all status
Default Value: None
req_host
Type: string
Description: host name of the request
Default Value: None
req_uri
Type: string
Description: uri of the request
Default Value: None
req_time
Type: int
Description: total request time greater than specified in millisecond
Default Value: None
upstream_time
Type: int
Description: upstream response time greater than specified in millisecond
Default Value: None
Command Line Syntax
The analyzer can be invoked directly on the command-line via the orxray
utility from the openresty-xray-cli software package.
Alternatively, the analyzer can also be invoked manually or automatically on the web console UI of OpenResty XRay (like on the Advanced web page).
# PID is the target process PID.
orxray analyzer run ngx-req-latency-us -p PID
# trace a shell command directly
orxray analyzer run ngx-req-latency-us -c SHELL_CMD
# PGID is the process group ID or any process's PID within the target process
# group.
orxray analyzer run ngx-req-latency-us -p -PGID
# trace any processes started from the specified executable path.
orxray analyzer run ngx-req-latency-us --exe /path/to/exe/file
Tracing Multiple Processes
Supported.
Output Formats
- Plain Texts
Author
The OpenResty Inc. Team.
Copyright
Copyright (C) by OpenResty Inc. All rights reserved.