I have a server with 16Gb RAM, 8Gb of which is used by innodb_buffer_pool_size.
Now, innodb_log_file_size is almost 25% (combined limit of innodb is 4Gb), so it’s around 1.9xGb is size.
Is this OTT (feels like it to me!)? Peter notes generally using 128Mb to 512Mb for this variable, I don’t know what size of RAM his comments are in relation to.
Also, are portions of innodb_log_file_size stored in RAM?