| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
#Techniques for Anti-Aliasing @font-face on Windows
It all started with an email from a client: Do these fonts look funky to you? The title is prickly.
The font in question was Port Lligat Sans from Google Web Fonts.
The "prickly" is aliasing caused by lack of hinting
| #! /usr/bin/env python | |
| import fileinput | |
| import argparse | |
| from operator import itemgetter | |
| parser = argparse.ArgumentParser() | |
| parser.add_argument('--target-mb', action = 'store', dest = 'target_mb', default = 61000, type = int) | |
| parser.add_argument('vmtouch_output_file', action = 'store', nargs = '+') | |
| args = parser.parse_args() |
| # NOTE: This code was extracted from a larger class and has not been | |
| # tested in this form. Caveat emptor. | |
| import django.conf | |
| import django.contrib.auth | |
| import django.core.handlers.wsgi | |
| import django.db | |
| import django.utils.importlib | |
| import httplib | |
| import json | |
| import logging |
