Christopher C. Aycock chrisaycock
chrisaycock
/ pcap_udp.cpp
Last active
May 24, 2025 13:27
Example for accessing UDP packets in a pcap file
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| // answer to https://quant.stackexchange.com/q/55088/35 | |
| // compile with c++ pcap_udp.cpp -lpcap | |
| #include <iostream> | |
| #include <pcap/pcap.h> | |
| #include <netinet/if_ether.h> | |
| #include <netinet/ip.h> | |
| #include <netinet/udp.h> |
One of the performance difficulties from interpreting a vector language is the accumulated temporaries. Consider:
y = 7 * x + 13
There are two different vector arithmetic operations here; an eager evaluation will perform the multiplication and then the addition. We can visualize this using the assembly language from Empirical's Vector Virtual Machine: