109 karma · joined December 27, 2011
Mac:tmp $ clang -O3 mem1d.c ; ./a.out
diff = -96
x = 0x7f9f4fc00300, *x = 7
y = 0x7f9f4fc00360, *y = 5
p = 0x7f9f4fc00300, *p = 7
Mac:tmp $ diff mem1d.c mem2d.c
13c13
< int *p = (int *)(yi + diff);
---
> int *p = (int *)(yi - 96);
Mac:tmp $ clang -O3 mem2d.c ; ./a.out
diff = -96
x = 0x7fc2b5c00300, *x = 7
y = 0x7fc2b5c00360, *y = 5
p = 0x7fc2b5c00300, *p = 7
Mac:tmp$ clang --version
Apple LLVM version 10.0.0 (clang-1000.11.45.2)
Target: x86_64-apple-darwin17.7.0
Thread model: posix18(core) * 4(cpus) * 2(+ht) = 144
https://chrome.google.com/webstore/detail/kb-ssl-enforcer/fl...
Use Little Snitch firewall and you will see it.
[1] http://googleonlinesecurity.blogspot.co.uk/2014/08/https-as-...
5Gbps = MGBASE-T. http://www.mgbasetalliance.org/
My real world testing of 1.3Gbps 802.11ac only yields about 250Mbps of real throughput. Wifi is half duplex and has more overhead than Ethernet.
Good interview with Matthew Gast on 802.11ac