ESP8266 No RTOS SDK 2.0 heap size

[wilkxt]

Hi
I use NONOS_SDK-2.1.0 and lwip_open_src_template_proj. I use http web serwer from oficial LWIP example.
When i read index.html page from web serwer i get this:
memfree it is value form function system_get_free_heap_size(), i read this every second (on soft timer), and when get http request.

79 memfree=39152
80 memfree=39152
81 memfree=39152
82 memfree=39152
83 memfree=39152
84 memfree=39152
http accept memfree=38776
http recived memfree=38704
http close memfree=35736
85 memfree=38968
86 memfree=38968
87 memfree=38968
88 memfree=38968
89 memfree=38968
http accept memfree=38592
http recived memfree=38520
http close memfree=35552
90 memfree=38784
91 memfree=38784
92 memfree=38784
http accept memfree=38408
http recived memfree=38336
http close memfree=35368
93 memfree=38600
94 memfree=38600
95 memfree=38600
http accept memfree=38224
http recived memfree=38152
http close memfree=35184
96 memfree=38416
97 memfree=38416
98 memfree=38416
99 memfree=38416
100 memfree=38416
http accept memfree=38040
http recived memfree=37968
http close memfree=35000
101 memfree=38232
102 memfree=38232
103 memfree=38232
104 memfree=38232
105 memfree=38232
....
180 memfree=39152

Every reading of the page changes heap by 184 bytes, but after several tens second(when I not read pages) the heap return to begining size (39152), it is correct or i have some leaking memory?

regards
Tom

[Her Mary]

I guess that it is the system need some time to release the heap, not a memory leak.
Maybe you can try to keep reading to check if the memory will reduce to be 0 or a very low number.