flush policy about spdlog

[NahuFigueroa97]

I read this https://github.com/gabime/spdlog/wiki/7.-Flush-policy and my doubts are: is flush_every() mandatory? Can it be replaced by flush_on and obtain the same result and performance?

[tt4g]

flush_every() is used when you want to write logs to disk periodically.
It should be used for applications that do not write logs very often.

Consider that it is not to be used as a reason for performance.

[tt4g]

By the way, the choice between flushing from threads by flush_every() and frequent flushes by flush_on() should depend on machine performance.
On a machine with slow disk I/O, frequent log writes to disk by flush_on() will slow down the throughput of the application.
In such a case, flushing to dedicated thread (flush_every() thread) should improve the throughput of the application.

[NahuFigueroa97]

thanks!