Understanding Memory usage in LTM and GTM
We have two f5 box (Ltm & Gtm) both are running version 11.5.3. As per one of the document "In BIG-IP 10.x - 11.5.4, the Configuration utility tmsh report memory allocated to buffers and caches as used memory. As a result, it may appear that the host system is using all available memory." Looking at memory stats of LTM is showing all memory used but GTM is showing around 2G of memory free. I need to confirm as per the document "; it is mandatory that F5 box running version 11.5 should always mark all the memory used.
GTM - Sys::System Memory Information Memory Used(bytes) Current Average Max(since 02/15/19 20:44:56)
Total Phys Memory 7.8G 7.8G 7.8G OS Used Memory 5.0G 5.0G 5.0G TMM Alloc Memory 2.6G 2.6G 2.6G TMM Used Memory 214.1M 214.1M 214.1M OS Used Swap 0 0 0
LTM - Sys::System Memory Information Memory Used(bytes) Current Average Max(since 02/15/19 20:50:13)
Total Phys Memory 7.8G 7.8G 7.8G OS Used Memory 7.7G 7.6G 7.7G TMM Alloc Memory 6.3G 6.3G 6.3G TMM Used Memory 454.1M 458.3M 467.0M OS Used Swap 218.8M 218.8M 218.8M