hex vs dec

[ygrek]

new protocol sends numbers in hex over the wire. Now the logs are harder to correlate with network events - because numbers in log are decimal (but actually not always, sometimes in hex too!) :

09-24-2018 02:55:08.239 DEBUG - (ClientSM.cc:278) C177429C 5.188.15.134:53844 -req: status: 0  buffers: 4096 write-id-alloc: seq: 3966475319232917609 client-seq: 743518551791084071 chunk: 288317120 version: 1 servers: 5.188.15.134 521a 5.188.12.211 5216 status: 0 msg:  took: 0 usec.

I understand this was done to save bandwidth apparently, but it is quite confusing/inconvenient now, every grep needs to be done twice.

[mikeov]

Reducing CPU utilization in the critical paths by changing radix 10 to radix 16, with allows to replace division with shift was more important consideration, than the overhead / bandwidth / memory.

Grep regular expression seems to be reasonably efficient way to find both hex and decimal representations in one pass. For example:

grep -E '(1e240|123456)'