tcpkit offer embedded Redis/Memcached/DNS latency monitor, and export latency's data to the user, you can store it to influxdb and show latency buckets with grafana. we now use tcpkit to offer redis/memcached latency monitor.
I have an embedded system, I have C and Lua and size is a major issue. This really looks interesting to me, maybe I can fit it, and then run have custom Lua parsers for different protocols.
Libpcap is probably the biggest issue, it’s pretty large in our world.
I had a quick look through tcpkit, it seems to make some odd decisions. For example latency stats is done in C. Why isn’t this a generic Lua plugin? I want latency, but the buckets are all wrong in my world, my latency starts at 300ms, and increases. Why isn’t this in Lua and easily tweakable.
Plus, is I can do latency stats then I can start doing some really interesting things I care about. For example bandwidth use, average packet size, etc etc.
(Oh, and why Lua 5.2? 5.3 has ints, which is nice when dealing with numbers)
tcpkit allow the user to run have custom Lua parsers for different protocols. and the latency only works in redis/memcached mode, use `-m` to specify the mode, the default is raw, and the packet would pass to Lua VM. See the example in scripts dir. I would update the Lua to 5.3 later, or pr is welcome.
It seems like wireshark doesn't directly have filters for latency. I end up adding the column when in the gui version of wireshark but this is a pretty nice cli version.