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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 |
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sudo apt-get update | |
sudo apt-get install -y git-core build-essential libssl-dev libboost-all-dev libdb5.1-dev libdb5.1++-dev libgtk2.0-dev | |
git clone https://github.com/bitcoin/bitcoin.git | |
cd bitcoin/src | |
make -f makefile.unix clean; make -f makefile.unix USE_UPNP= bitcoind | |
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--- | |
layout: default | |
--- | |
<div class="blog-index"> | |
{% assign post = site.posts.first %} | |
{% assign content = post.content %} | |
{% include post_detail.html %} | |
</div> |
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