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Programmatically get the cache line size?
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@android : I use fedora-18 x64 machine with core-i5 processor. cat /sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size returns 64 in my system. Same for index1,2,3 folders also.
– Abid Rahman K
Aug 8 '13 ...
What is exactly the base pointer and stack pointer? To what do they point?
...across function calls. ebp itself actually points to the previous frame's base pointer, which enables stack walking in a debugger and viewing other frames local variables to work.
Most function prologs look something like:
push ebp ; Preserve current frame pointer
mov ebp, esp ; Create ne...
Remove rows with all or some NAs (missing values) in data.frame
...ata.frame does not support cols=.
Benchmark result
Here is a comparison of base (blue), dplyr (pink), and data.table (yellow) methods for dropping either all or select missing observations, on notional dataset of 1 million observations of 20 numeric variables with independent 5% likelihood of being ...
Pandas percentage of total with groupby
...e level='state' kwarg in div tells pandas to broadcast/join the dataframes base on the values in the state level of the index.
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Why is IntelliJ 13 IDEA so slow after upgrading from version 12?
...ntelliJ 13 after upgrading from 12.
What worked for me was editing the idea64.vmoptions in the bin folder and setting the max heap to 8 GB (was 512 MB) and the Max PermGen to at least 1GB (was 300MB).Example below:
-Xms128m
-Xmx8192m
-XX:MaxPermSize=1024m
Upon restart it was much faster.
For Int...
Fastest hash for non-cryptographic uses?
I'm essentially preparing phrases to be put into the database, they may be malformed so I want to store a short hash of them instead (I will be simply comparing if they exist or not, so hash is ideal).
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Mercurial move changes to a new branch
...n is one solution for you problem. IMHO a simpler workflow is to use the rebase extension. Suppose you have a history like this:
@ changeset: 2:81b92083cb1d
| tag: tip
| summary: my new feature: edit file a
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o changeset: 1:8bdc4508ac7b
| summary: my new feature: add file b...
How to hide columns in HTML table?
I have created a table in ASPX. I want to hide one of the columns based on the requirement but there is no attribute like visible in the HTML table building. How can I solve my problem?
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hexadecimal string to byte array in python
... bits = ''
for i in range(len(s)):
bits += hex_table[int(s[i], base=16)]
return bits
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How to install the current version of Go in Ubuntu Precise
...n
which outputs in my case (Ubuntu precise)
go version go1.1.1 linux/amd64
From there just export the settings you're gonna need to bash_rc or equivalent:
export GOROOT=/usr/lib/go
export GOBIN=/usr/bin/go
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