4 Device Memory Usage

Table 4-1. Total memory usage of PIC16F18857 in bytes for each protocol at different optimization levels
Protocol	-O0	-O1	-O2	-O3	-Os
IPV4+ARP	13,668	12,878	12,583	10,999	9,993
UDP	15,348	14,436	14,117	12,399	11,293
DHCP	21,635	20,421	19,595	17,465	16,301
TCP	27,367	25,937	25,421	17,465	20,480
ICMP	16,994	16,063	15,475	13,666	12,556
TFTP	19,542	18,433	17,754	15,684	14,604
NTP	15,708	14,788	14,466	12,682	11,585
DNS	17,687	16,622	16,279	14,495	13,129
LLDP	16,541	15,566	15,225	13,591	12,425

Table 4-2. Total memory usage of AVR64DD32 in bytes for each protocol at different optimization levels
Protocol	-O0	-O1	-O2	-O3	-Os
IPV4+ARP	18,172	11,716	11,240	17,798	9,660
UDP	17,984	11,328	10,820	18,406	10,062
DHCP	24,293	15,935	15,291	24,221	13,985
TCP	28,666	18,626	17,408	26,242	14,916
ICMP	20,449	13,231	12,489	21,765	11,653
TFTP	21,316	13,712	12,992	21,910	12,074
NTP	18,368	11,582	11,074	18,660	10,280
DNS	19,184	12,044	11,510	19,516	10,740
LLDP	18,893	11,747	11,205	18,761	10,473

Note:

Table displays total memory usage which includes the peripheral and other necessary drivers for respective devices.
Memory usage values generated using the toolchain listed under System Requirements page.
IPV4 and ARP are always generated for all protocols, hence they are part of the memory usage for all of them.
DCHP, TFTP, NTP and DNS protocols require UDP, hence it is part of the respective memory usage.