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how to check if a file is a directory or regular file in python? [duplicate]
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Chris B.Chris B.
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The split() method in Java does not work on a dot (.) [duplicate]
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64
The documentation on split() says:
Splits this string around matches of the given regular e...
How do I remove a key from a JavaScript object? [duplicate]
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jessegavinjessegavin
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Is SHA-1 secure for password storage?
...tions.
About SHA-1 cost:
The elementary cost of SHA-1 is about hashing a 64-byte block. That's how SHA-1 works: data is padded, then split into 64-byte blocks. The cost of processing a single block is about 500 clock cycles on an Intel Core2 system, and that's for a single core. MD5 and MD4 are fa...
What's the need of array with zero elements?
...xample_large_s
{
u32 first; // align to CL
u32 data;
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u64 *second; // align to second CL after the first one
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};
In code you can declare them using GCC extensions like:
__attribute__((aligned(CACHE_LINE_BYTES)))
But you still want to make sure this is enforced in ru...
How do I get the directory from a file's full path?
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BrandonBrandon
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Infinity symbol with HTML
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bradbrad
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What is RSS and VSZ in Linux memory management
...out 0x1000000000 0x200000000
echo $?
sudo dmesg
where:
0x1000000000 == 64GiB: 2x my computer's physical RAM of 32GiB
0x200000000 == 8GiB: print the memory every 8GiB, so we should get 4 prints before the crash at around 32GiB
echo 1 | sudo tee /proc/sys/vm/overcommit_memory: required for Linux ...
Get url without querystring
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BrandonBrandon
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Get Image Height and Width as integer values?
... rights on the directory but not the image itself (works with the image on 644).
– Lee Saxon
Jan 10 '16 at 16:15
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