jboner

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

maxvt

Currently, there is an explosion of tools that aim to manage secrets for automated, cloud native infrastructure management. Daniel Somerfield did some work classifying the various approaches, but (as far as I know) no one has made a recent effort to summarize the various tools.

This is an attempt to give a quick overview of what can be found out there. The list is alphabetical. There will be tools that are missing, and some of the facts might be wrong--I welcome your corrections. For the purpose, I can be reached via @maxvt on Twitter, or just leave me a comment here.

There is a companion feature matrix of various tools. Comments are welcome in the same manner.

roycewilliams

#----------------------------------------------------------------------
# Survey of known allocatable memory as reported to hashcat by OpenCL.
# Varies by OpenCL runtime family (NVIDIA, AMD, Intel, pocl, etc.) and version.
# Triggered by curiosity about OpenCL maximum memory allocation.
# Compiled by Royce Williams / @tychotithonus
# As referenced in https://devtalk.nvidia.com/default/topic/992502/cuda-programming-and-performance/why-is-cl_device_max_mem_alloc_size-never-larger-than-25-of-cl_device_global_mem_size-only-on-nvidia-/
#
# Please send new entries (even with minor variations) to royce@techsolvency.com
#----------------------------------------------------------------------
# Commentary:

docwhat

// Requires https://plugins.jenkins.io/mask-passwords to run

/**
 * Runs code with secret environment variables and hides the values.
 *
 * @param varAndPasswordList - A list of Maps with a 'var' and 'password' key.  Example: `[[var: 'TOKEN', password: 'sekret']]`
 * @param Closure - The code to run in
 * @return {void}
 */
def withSecretEnv(List<Map> varAndPasswordList, Closure closure) {

hum4n0id

• Gstreamer Pipeline Samples
  • Video
    • display test video
    • record to file
    • record and display at the same time(queue)
    • record webcam to *.mp4(jetson nano)
    • fps test
  • Audio
  • Mux Video and Audio
• Media File