Memory Fragmentation in OpenResty and Nginx's Shared Memory Zones

* An empty zone * Filling entries of similar sizes * Deleting odd-numbered keys * Deleting the keys in the first half * Mitigating Fragmentation

Yichun Zhang

* An empty zone * Filling entries of similar sizes * Deleting odd-numbered keys * Deleting the keys in the first half * Mitigating Fragmentation

OPENRESTY XRAY Jul 26, 2022

OPENRESTY XRAY Updated Jul 26, 2022 14mins read

How OpenResty and Nginx Shared Memory Zones Consume RAM

* Slabs and pages * What is allocated is not what is paid for * Fake Memory Leaks * HUP reload

Yichun Zhang

* Slabs and pages * What is allocated is not what is paid for * Fake Memory Leaks * HUP reload

OPENRESTY XRAY Jul 26, 2022

OPENRESTY XRAY Updated Jul 26, 2022 11mins read

How OpenResty and Nginx Allocate and Manage Memory

* On The System Level * On The Application Level * For Traditional Nginx Servers

Yichun Zhang

* On The System Level * On The Application Level * For Traditional Nginx Servers

OPENRESTY XRAY Jul 25, 2022

OPENRESTY XRAY Updated Jul 25, 2022 16mins read

The LuaJIT GC64 Mode

* The Old Memory Limit * When Hitting The Memory Limit * The Memory Limit Is Per Process * GC-Managed Memory * Memory Allocated Outside GC * Extending The x64 Mode to The 4 GB Limit * The New GC64 Mode * How to Enable The GC64 Mode * Performance Impact * Debugging and Profiling Tool Chains

Yichun Zhang