Bash isn't very efficient looking up large arrays I found using bash 4 assoicative arrays gave me a significant boost in speed if you have bash 4 consider using them:
Interesting.... I did some further testing with bash 3, bash 4 and ksh93 (for the associative array I used the synonym typeset -A instead of declare -A which works both in bash4 and ksh93:
Code:
indexed arrays bash 3 bash 4 ksh93
real 2m4.457s 1m6.420s 0m1.855s
user 1m53.857s 0m57.251s 0m1.764s
sys 0m0.501s 0m0.399s 0m0.007s
Associative arrays bash 3 bash 4 ksh93
real - 0m4.553s 0m1.871s
user - 0m3.867s 0m1.567s
sys - 0m0.171s 0m0.003s
There seems to be an issue with regular arrays in bash that is absent in ksh93 which processes both types of arrays at the same speed...
I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends.
As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
Below is a test script I was trying to use so that I could understand why the logic was not working in a larger script. While accessing and printing array data inside the while loop, everything is fine. Outside the loop, i guess everything is null?? The for loop that is meant to cycle... (4 Replies)
Hello All,
Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....?
I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping
through a string containing some of these "Illegal Characters". Now... (5 Replies)
Trying to do some control flow parsing based on the index postion of an array member. Here is the pseudo code I am trying to write in (preferably in pure bash) where possible. I am thinking regex with do the trick, but need a little help.
pesudo code
if == ENDSINFIVEINTS ]]; then
do... (4 Replies)
I have created a RAID10 array (near layout) with four 8 GiB virtual hard drives, making a 16 GiB array (/dev/md0 formatted as ext4). On the other hand, I have a 16 GiB RAID1 array (/dev/md1, also formatted as ext4).
The purpose of these setups is to compare the read and write performances of each... (13 Replies)
hello,
i need a bit of help on how to do this effectively in bash without a lot of extra looping or massive switch/case
i have a long array of M elements and a short array of N elements, so M > N always. M is not a multiple of N.
for case 1, I want to stretch N to fit M
arrayHuge
H = (... (2 Replies)
I am trying to check whether particular host and port are responding or not. I am using below script to check. but node_port array that i am using in loop is getting replaced with previous iteration value. Script and output is given.
Please help me to understanding why node_port values are... (5 Replies)
Hello,
i have a script that i need account_number to match a name.
for exsample :
ACCOUNT_ID=(IatHG8DC7mZbdymSoOr11w KbnlG2j-KRQ0-1_Xk356s8)
and i run a loop curl requst with this the issue is that i want to know on
which account were talking about so bash will know this :
... (4 Replies)
Hi there,
A bit new to bash and am having an issue with a for loop. I look for filenames in a specified directory and pull the date string from each meeting a certain criteria, and then would like to make a directory for each date found, like this:
search 20180101.gz 20180102.gz 20180103.gz... (5 Replies)
Discussion started by: mwheeler12
5 Replies
LEARN ABOUT DEBIAN
soprimitivevertexcache
SoPrimitiveVertexCache(3) Coin SoPrimitiveVertexCache(3)NAME
SoPrimitiveVertexCache -
SYNOPSIS
Inherits SoCache.
Public Types
enum Arrays { NORMAL = 0x01, TEXCOORD = 0x02, COLOR = 0x04, ALL = (NORMAL|TEXCOORD|COLOR) }
Public Member Functions
SoPrimitiveVertexCache (SoState *state)
virtual ~SoPrimitiveVertexCache ()
void renderTriangles (SoState *state, const int arrays=ALL) const
void renderLines (SoState *state, const int arrays=ALL) const
void renderPoints (SoState *state, const int array=ALL) const
void addTriangle (const SoPrimitiveVertex *v0, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, const int *pointdetailidx=NULL)
void addLine (const SoPrimitiveVertex *v0, const SoPrimitiveVertex *v1)
void addPoint (const SoPrimitiveVertex *v)
int getNumVertices (void) const
const SbVec3f * getVertexArray (void) const
const SbVec3f * getNormalArray (void) const
const SbVec4f * getTexCoordArray (void) const
const SbVec2f * getBumpCoordArray (void) const
const uint8_t * getColorArray (void) const
int getNumTriangleIndices (void) const
const GLint * getTriangleIndices (void) const
int32_t getTriangleIndex (const int idx) const
SbBool colorPerVertex (void) const
const SbVec4f * getMultiTextureCoordinateArray (const int unit) const
int getNumLineIndices (void) const
const GLint * getLineIndices (void) const
int getNumPointIndices (void) const
const GLint * getPointIndices (void) const
void fit (void)
void depthSortTriangles (SoState *state)
Additional Inherited Members
Detailed Description
The SoPrimitiveVertexClass is used to cache generated triangles.
Constructor & Destructor Documentation
SoPrimitiveVertexCache::SoPrimitiveVertexCache (SoState *state)
Constructor.
SoPrimitiveVertexCache::~SoPrimitiveVertexCache () [virtual]
Destructor.
Author
Generated automatically by Doxygen for Coin from the source code.
Version 3.1.3 Wed May 23 2012 SoPrimitiveVertexCache(3)