⌘T | go to file |
⌘⌃P | go to project |
⌘R | go to methods |
⌃G | go to line |
⌘KB | toggle side bar |
⌘⇧P | command prompt |
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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 |
Hi there!
The docker cheat sheet has moved to a Github project under https://github.com/wsargent/docker-cheat-sheet.
Please click on the link above to go to the cheat sheet.
I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!
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nine.ch 8016 Pt. | |
CloudScale.ch 5708 Pt. | |
Vultr 4996 Pt. | |
Linode 4446 Pt. | |
ExoScale 3691 Pt. | |
DigitalOcean 3524 Pt. | |
Scaleway C2 3505 Pt. | |
Scaleway VC1 3477 Pt. | |
AWS 3248 Pt. | |
Cirrax 2530 Pt. |
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// Usage: | |
// Copy and paste all of this into a debug console window of the "Who is Hiring?" comment thread | |
// then use as follows: | |
// | |
// query(term | [term, term, ...], term | [term, term, ...], ...) | |
// | |
// When arguments are in an array then that means an "or" and when they are seperate that means "and" | |
// | |
// Term is of the format: | |
// ((-)text/RegExp) ( '-' means negation ) |
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window: | |
# Window dimensions (changes require restart) | |
# | |
# Number of lines/columns (not pixels) in the terminal. The number of columns | |
# must be at least `2`, while using a value of `0` for columns and lines will | |
# fall back to the window manager's recommended size. | |
dimensions: | |
columns: 500 | |
lines: 30 |
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-- Based off IETF draft, https://datatracker.ietf.org/doc/draft-peabody-dispatch-new-uuid-format/ | |
create or replace function uuid_generate_v7() | |
returns uuid | |
as $$ | |
begin | |
-- use random v4 uuid as starting point (which has the same variant we need) | |
-- then overlay timestamp | |
-- then set version 7 by flipping the 2 and 1 bit in the version 4 string | |
return encode( |
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