chitchcock

Stevey's Google Platforms Rant

I was at Amazon for about six and a half years, and now I've been at Google for that long. One thing that struck me immediately about the two companies -- an impression that has been reinforced almost daily -- is that Amazon does everything wrong, and Google does everything right. Sure, it's a sweeping generalization, but a surprisingly accurate one. It's pretty crazy. There are probably a hundred or even two hundred different ways you can compare the two companies, and Google is superior in all but three of them, if I recall correctly. I actually did a spreadsheet at one point but Legal wouldn't let me show it to anyone, even though recruiting loved it.

I mean, just to give you a very brief taste: Amazon's recruiting process is fundamentally flawed by having teams hire for themselves, so their hiring bar is incredibly inconsistent across teams, despite various efforts they've made to level it out. And their operations are a mess; they don't real

mikesmullin

Mike's x86-64 Assembly (ASM) Notes

Assembling Binary Machine Code

Operating Modes:

These determine the assumed/default size of instruction operands, and restricts which opcodes are available, and how they are used.

Modern operating systems, booted inside Real mode,

guillermo

#!/bin/bash

# This is a unix wrapper around the erlang vm. It provides the following functionality:
#
# * Spawns in foreground
# * Handle SIGHUP and call RELOADFUNC
# * Handle SIGTERM SIGQUIT and SIGINT telling to the vm to quit
# * Dies if the vm dies (for example kernel killing because out of memory)
#
# Forks and improvements are welcome.

aginor

--- a/common/lib/modules/fglrx/build_mod/firegl_public.c	2014-11-29 09:02:10.000000000 +1300
+++ b/common/lib/modules/fglrx/build_mod/firegl_public.c	2015-04-18 22:31:06.673656387 +1200
@@ -4816,8 +4816,13 @@
 {
     unsigned long orig_level;
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,19,0)
     orig_level = __get_cpu_var(kasExecutionLevel);
     __get_cpu_var(kasExecutionLevel) = level;
+#else

ayosec

Benchmarks on different Map implementations for uint keys

Environment:

$ rustc --version
rustc 0.13.0-nightly (770378a31 2014-11-20 23:02:01 +0000)
$ uname -sm
Linux x86_64

No optimizations. No debug info

ArseniyShestakov

Check it's working

DRI_PRIME=1 glxinfo | grep OpenGL

Unbind AMD GPU from Radeon driver

echo "1002 6719" > /sys/bus/pci/drivers/vfio-pci/new_id echo "0000:01:00.0" > /sys/bus/pci/devices/0000:01:00.0/driver/unbind echo "0000:01:00.0" > /sys/bus/pci/drivers/vfio-pci/bind echo "1002 6719" > /sys/bus/pci/drivers/vfio-pci/remove_id echo "1002 aa80" > /sys/bus/pci/drivers/vfio-pci/new_id echo "0000:01:00.1" > /sys/bus/pci/devices/0000:01:00.1/driver/unbind

CMCDragonkai

Understanding the Memory Layout of Linux Executables

Required tools for playing around with memory:

• hexdump
• objdump
• readelf
• xxd
• gcore

spheenik

diff --git audio/audio.c audio/audio.c
index 6eccdb17ee..4eb190a18f 100644
--- audio/audio.c
+++ audio/audio.c
@@ -2097,3 +2097,8 @@ void AUD_set_volume_in (SWVoiceIn *sw, int mute, uint8_t lvol, uint8_t rvol)
         }
     }
 }
+
+int64_t audio_get_timer_ticks(void)

chisui

# vim:ft=zsh ts=2 sw=2 sts=2
#
# agnoster's Theme - https://gist.github.com/3712874
# A Powerline-inspired theme for ZSH
#
# # README
#
# In order for this theme to render correctly, you will need a
# [Powerline-patched font](https://github.com/Lokaltog/powerline-fonts).
# Make sure you have a recent version: the code points that Powerline

yohhoy

AV1 coding scheme

• Arithmetic coding
  • multi-symbols (up to 16 values)
  • Coefficients coding: lv_map
  • CDF: Cumulative distribution function
    • CDF update (at the end of frame)
    • CDF update (adaptive per symbol)
• Image blocking