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create or replace view showfunctions as | |
select | |
l.lanname, | |
t.typname || ' = ' || n.nspname || '.' || | |
p.proname || '(' || pg_catalog.oidvectortypes(p.proargtypes) || ')' | |
as function_definition, | |
(select case when lanname <> 'c' | |
then '\n\n'||prosrc ||'\n\n' | |
else '\n'||prosrc ||'.so\n\n' | |
end) as source |
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# | |
# CORS header support | |
# | |
# One way to use this is by placing it into a file called "cors_support" | |
# under your Nginx configuration directory and placing the following | |
# statement inside your **location** block(s): | |
# | |
# include cors_support; | |
# | |
# As of Nginx 1.7.5, add_header supports an "always" parameter which |
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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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