how to handle image cache ? about cfadmin

[CandyMi]

@gcclua
For example: You want to download a cached static file (js/css/png) when the browser first accesses the cf web server. It can be read locally when the second access is made, right?

I am not sure if I know what you mean.

[gcclua]

yeah, I mean first accesses is too slow, about use 7~8 second to load 10 png, disk read problem

[CandyMi]

If the disk itself is slow to read, I recommend that you migrate the static files to a separate server. This will alleviate this problem.

Although cf can notify the client to cache static files, this can not solve the problem of low efficiency of the disk itself.

[CandyMi]

@gcclua
If the static file read speed is normal, we can set the ttl parameter of the httpd:static(folder, ttl) method, so that each client does not need to request it again during the ttl period after the last request for the static file.

[gcclua]

I want to find a way, set framework to cache some png into server's memory, keep about 10240 png that will be frequent access

[gcclua]

If httpd server preload/cache static folder that user set before bootstrap, and check cache when receive the hit request for the cache url/image,

[CandyMi]

@gcclua
cf does not implement this feature, you can only try other ways. : )

[CandyMi]

@gcclua
On the dev branch, I try to use 'sendfile' to improve the performance of the file being sent. Using zero-copy may be better than the original implementation.

I don't know if this will help you solve the problem you're experiencing, but at least it will effectively reduce the memory fluctuations caused by sending Lua large files.

If you have time, you can try to pull the dev version for testing.

[gcclua]

OK,thanks,I will try