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Automated merge with file:///cygdrive/d/srv/hg-home/tips
authorOleksandr Gavenko <gavenkoa@gmail.com>
Fri, 26 Nov 2010 17:25:32 +0200
changeset 714 02bd68afca42
parent 712 c1def2bc1c95 (diff)
parent 713 26d32cdbd408 (current diff)
child 716 991c7ffa6f44
Automated merge with file:///cygdrive/d/srv/hg-home/tips
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cpu.rst	Fri Nov 26 17:25:32 2010 +0200
@@ -0,0 +1,11 @@
+-*- mode: outline; coding: utf-8 -*-
+
+* ARM.
+
+  http://en.wikipedia.org/wiki/ARM_architecture
+
+** TrustZone.
+
+  http://www.arm.com/products/processors/technologies/trustzone.php
+
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devel.rst	Fri Nov 26 17:25:32 2010 +0200
@@ -0,0 +1,17 @@
+-*- mode: outline; coding: utf-8 -*-
+
+* Numbers everyone should know.
+
+ * L1 cache reference 0.5 ns
+ * Branch mispredict 5 ns
+ * L2 cache reference 7 ns
+ * Mutex lock/unlock 100 ns
+ * Main memory reference 100 ns
+ * Compress 1K bytes with Zippy 10,000 ns
+ * Send 2K bytes over 1 Gbps network 20,000 ns
+ * Read 1 MB sequentially from memory 250,000 ns
+ * Round trip within same datacenter 500,000 ns
+ * Disk seek 10,000,000 ns
+ * Read 1 MB sequentially from network 10,000,000 ns
+ * Read 1 MB sequentially from disk 30,000,000 ns
+ * Send packet CA->Netherlands->CA 150,000,000 ns
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/prog-lang.rst	Fri Nov 26 17:25:32 2010 +0200
@@ -0,0 +1,8 @@
+-*- mode: outline; coding: utf-8 -*-
+
+* Comparison of prog langs.
+
+  http://en.wikipedia.org/wiki/Comparison_of_programming_languages
+  http://en.wikipedia.org/wiki/Comparison_of_programming_languages_%28basic_instructions%29
+  http://shootout.alioth.debian.org/
+                The Computer Language Benchmarks Game
--- a/web-search.rst	Fri Nov 26 17:11:10 2010 +0200
+++ b/web-search.rst	Fri Nov 26 17:25:32 2010 +0200
@@ -4,6 +4,8 @@
 
   http://www.google.com/support/websearch/bin/answer.py?answer=136861
                 Google search basics: More search help
+  http://www.google.ru/help/operators.html
+                Advanced Operators
   http://code.google.com/intl/ru/apis/soapsearch/reference.html
                 Google SOAP Search API Reference
   http://www.google.com/cse/docs/resultsxml.html
--- a/web-site.rst	Fri Nov 26 17:11:10 2010 +0200
+++ b/web-site.rst	Fri Nov 26 17:25:32 2010 +0200
@@ -4,3 +4,39 @@
 
   http://developer.yahoo.com/performance/rules.html
 
+* robots.txt.
+
+To exclude all robots from the entire server
+
+  User-agent: *
+  Disallow: /
+
+To exclude all robots from part of the server:
+
+  User-agent: *
+  Disallow: /cgi-bin/
+  Disallow: /tmp/
+  Disallow: /junk/
+
+To allow a single robot:
+
+  User-agent: Google
+  Disallow:
+
+  User-agent: *
+  Disallow: /
+
+To allow all robots complete access:
+
+  User-agent: *
+  Disallow:
+
+  http://www.robotstxt.org/
+                home page
+  http://www.robotstxt.org/robotstxt.html
+                About /robots.txt
+  http://www.robotstxt.org/faq.html
+                Frequently Asked Questions
+  http://googlewebmastercentral.blogspot.com/2008/06/improving-on-robots-exclusion-protocol.html
+                Improving on Robots Exclusion Protocol
+
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