<story><title>Busting Modern Hardware Myths (2013)</title><url>http://highscalability.com/blog/2013/6/13/busting-4-modern-hardware-myths-are-memory-hdds-and-ssds-rea.html?</url><text></text></story><parent_chain><item><author>yvdriess</author><text>Are any of these a surprise to anyone here?&lt;p&gt;I am not asking this rhetorically.</text></item></parent_chain><comment><author>t1m</author><text>I found the SSD discussion very useful.  Bottom line is that deleting (or rewriting) data causes unpredictable and degraged write performance due to &amp;quot;write amplification&amp;quot;.  Sticking to appends-only writes keeps things fast.&lt;p&gt;I certainly wouldn&amp;#x27;t discourage anyone from watching the video.  At least read the slides!&lt;p&gt;&lt;a href=&quot;http://gotocon.com/dl/goto-aar-2012/slides/MartinThompson_MythbustingModernHardwareToGainMechanicalSympathy.pdf&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;gotocon.com&amp;#x2F;dl&amp;#x2F;goto-aar-2012&amp;#x2F;slides&amp;#x2F;MartinThompson_My...&lt;/a&gt;</text></comment>
<story><title>Busting Modern Hardware Myths (2013)</title><url>http://highscalability.com/blog/2013/6/13/busting-4-modern-hardware-myths-are-memory-hdds-and-ssds-rea.html?</url><text></text></story><parent_chain><item><author>yvdriess</author><text>Are any of these a surprise to anyone here?&lt;p&gt;I am not asking this rhetorically.</text></item></parent_chain><comment><author>p1esk</author><text>For me, the surprise was to learn that access time for L1 cache is 3 cycles. I thought it should be 1 cycle.</text></comment>