Hi,
Currently we are modify some nginx proxy cache functions, and I would like to
know how nginx cache work?
1. does nginx cache data in memory or read from disk everytime?
for example, first I do `GET /example.jpg`, nginx will cache it and save to
disk.
next time I do `GET /example.jpg`, does nginx read the file from disk then send
to client,
or nginx just send the file from memory to client because nginx has cached it
in memory ?
2. if nginx save it in memory, what happens if the file is 1GB?
does nginx malloc a 1GB memory and save the file? or split the file into many
parts, and save it separately using
something like array or linked list?
Thanks
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