graph over time the processor system

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  When I tried this and chose the reader wonder an administrator password.

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• I2C communication slows down over time using USB-8451

  Hi all!

  I try to communicate via a device slave using a USB-8451 I2C and I noticed that after a while the communication speed slows way.

  I can send and receive data very well and apparently my system seems to work. But the problem is that over time the speed of data transfer slows down so much so that if I let it run all night it has slowed to a crawl in the morning. My ultimate goal is to gather data, draw and save every second and at the beginning it is easily achievable, but after 10-15 hours I can no longer collect data as fast I need. I'm not quite sure if this is a problem with my code LabVIEW, the NI USB-8451 box or the slave device. But if I stop running the LabVIEW program and start it again, everything returns to normal.

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  I've greatly simplified the LabVIEW code that I used to collect data on I2C and I see even this gradual slowing down over time. Attached, it's that the very simplified VI and the data file, it produced. I only ran it for about 45 minutes, but from the beginning to the end we see again that the enforcement timeframe is rising.

  I hope I'm just doing something stupid, thanks in advance!

  -Aaron

  Aaron,

  Do not have the additional module responsible for these functions, but I'm sure I know whats going on.  It seems that each time through the loop 'OR-845 x I2C Create Configuration Reference.vi' creates a new reference.  After a while it will start to slow things down.  Better to open the reference before the while loop starts and spend just the reference in the loop.  Don't forget to close the reference after the loop stops.

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• full waveform graph to calculate the area under the curve over time

  Hello

  If please find my attached VI and help me please for integration to get area undercut for my chart of waveform.

  I would like to find my wave power wind energy production chart oever within one month of time.

  I think I have to integrate to get the area under the curve and so I m now using tool integrated into labview attached.

  As I did not wait years for my result and so I want to make sure that the tool that I m using is correct.

  Please advise me what method I will use for my chart.

  Dominique says:

  I would like to integrate my table of power over time (table of power is on each interval of a minute) and the entire graph is one month. So, I'll put dt = 1?

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• Allocation of resources to the virtual machine over time

  I took trying to graph on the planning capacity in time for our clusters.

  Allowance only for the time being, use maybe later. Try trend how we allocate vms (spikes).

  I care about the elements are:

  Physics: Amount of processors in cluster, physical amount of RAM in the cluster - Total (at some point? don't think it's possible, but it would be nice)

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  Virtual: amount of virtual processors, RAM allocated - Total for each month

  The code has been changed on this topic (thanks, LucD!) and even more of various other segemnts.

  This makes me a nice referential list created of the time to work with:

  $SQLSERVER="MYSQLSERVER"
  $Database="VCDB"
   
  $SqlConnection = New-Object System.Data.SqlClient.SqlConnection
  $SqlConnection.ConnectionString = "Server=$SQLSERVER;Database=$DATABASE;Integrated Security=True"
   
  $SqlCmd = New-Object System.Data.SqlClient.SqlCommand
   
  $SqlCmd.CommandText = "select distinct lower(vm_name) AS vm_name, max(create_time) as create_time " +
                           "from VPX_EVENT " +
                           "where     (event_type like '%.VmCreatedEvent' or " +
                           "          event_type like '%.VMClonedEvent' or " +
                           "          event_type like '%.VMRegisteredEvent') " +
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  $SqlCmd.Connection = $SqlConnection
   
  $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
  $SqlAdapter.SelectCommand = $SqlCmd
   
  $DataSet = New-Object System.Data.DataSet
  $SqlAdapter.Fill($DataSet)
  $SqlConnection.Close()
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  Now that there is a file with the dates, I can use to reach the given date to an allocation of resources aspect:

  $creationtimes = Import-Csv 'c:\vm_create-list.csv'
  
  $realvms = Get-View -ViewType "VirtualMachine"
  
  $myCol = @()
  
  foreach ($item in $realvms) {
       
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       $Row.NumCpu = $item.Config.Hardware.NumCPU
       $Row.MemoryMB = $item.Config.Hardware.MemoryMB
       
       $createtime = $creationtimes | ? {$_.vm_name -match $item.Name} | Select-Object create_time
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       } else {
            $Row.CreationTime = [datetime]$createtime.create_time
       }
       
       $myCol += $Row
       }
  
  $myCol = $myCol | Sort CreationTime
  

  This leaves me with a picture of the beautiful collection of dates, number of cpu and the size of the ram.

  I am stuck now trying this summary by calendar month - output something like:

  month,numcpu,memorymb,numOfVMs
  2009-10,2,8192,1
  2009-11,3,12228,2
  2009-12,1,4096,1
  

  In order ultimate spill in tables and graphics with ceilings determined at the time of the first

  I realize that there is probably a way to bind the SQL query method as well and pull it all together in a script. No idea how to transform the DataSet that is returned to a Collection of usable objects.

  Unless someone out there has a great way to draw growth VM distribution over time?

  The Group-Object cmdlet can take more than 1 property group

  Something like that

  $mReport = @()
  $groups = $myCol | Group-Object -Property {$_.Date.Year, $_.Date.Month}
  ...
  

• Advice on the restructuring of code to avoid the downturn over time

  Hi, I am a new user of LabView, you want some advice on how to better structure the program I wrote and which is used to perform a hydrostatic test arrangement. Data are collected on a module of AI cDAQ 9207 and a cDAQ 9474 module is used to control the two valves that subsequently controls pressure in and out of the test Chamber. I enclose my first version of the reference code.

  What the VI is supposed to do when the user of the weapon system and strikes then the execution, the program switch will cause a transition of the test chamber through several States corresponding to the levels of different pressure for some time. Time curve vs pressure is written to a file of measures. I built using a state machine structure.

  My problem is, during the initial trial, when the duration of the test was about 5 minutes or so, the program went very well. However, once I started to test the length of the actual test of 2.5 hours, I noticed the program running slower and slower as time progressed to the point where it would take several seconds for each iteration of the loop, then by accident about an hour or two in the test. After scouring the articles and messages, I suspect the main culprit is the diagram of waveform and to a lesser extent DAQ assistant.

  While I need the loop structure data collection and case to run pretty quickly (preferably the order a few hundred s/s) I need the code to be able to react to changes in pressure in the room quickly enough, the actual data, that I need to store and display the graph can be as slow as a sample per second or even longer. My guess is at this point that I have to rebuild the program using some sort of architecture of producer/consumer, I'm looking for some advice on how best to structure the program.

  Data acquisition obviously belongs in the producer loop that will run at a fast enough pace and there will be a consumer loop that will run at a much slower pace for the Bulletin Board writing to the extent of the file vi, but where should I put the case of structure state machine which currently controls the valves? Should put in the loop of the producer since it must run at the same fast pace as the collection of data, so it can react to changes in pressure or should I build another loop of consumer for him? What other indicators (pressure and Boolean) and controls on the front panel, they should be on another loop operating at a medium speed I want to respond to a faster pace than the data to the chart/write the loop, but they do not need to be as fast as the data acquisition loop?

  Finally, I'm not quite sure what would be the best way to reduce the sampling rate of the data that I have in fact appear on the graph and the store in the file, it wouldn't make sense to create another task of measurement that samples at a rate below just for that purpose. Suggestions and advice would be greatly appreciated! Thanks in advance!

  Bob

  My guess is that if you monitor the use of memory over time, you see that going up, Yes? Everything is is always a good idea to get rid of the express VIs, I would look for the problem of slowdown in the structure of the case. You repeatedly open and never close tasks which are created using some DIO channels. Hnece each time that the loop more memory is allocated. Try to move creating channel screws out of the loop, then the tasks are created once before the start of the loop and then written to as required inside the loop - and don't forget to delete tasks once the loop over.

  Mike...

  PS: You are right with your comments regarding the structure of the producer consumer. Basically it break up as things get quickly (DAQ IO) that there is in a loop, while the user interface and the stuff that can take a long time (such as the data record) are in another loop. You can even have three loops with one for the acquisition of input data and the other for the digital output.

  PPS: Finally don't forget that even if the structure of consumption of the producer is usually represented with everything in a single diagram, there no need to be. I wrote a lot where each loop is in his own VI which is run dynamically, then the application starts.

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  Hello
  
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  Idle time (%) of the CPU
  Time CPU system (%)
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  couple of questions about sub settings, measure processor or avg unique all the processorss and the processors use?

  CPU utilization (%)
  For UNIX platforms, this measure represents the amount of CPU utilization in percentage of total CPU available processing power.

  http://docs.Oracle.com/CD/B28359_01/server.111/b28282/monitor.htm#CFAECIDG

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  See you soon,.

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  Hello

  I am creating a VI where the acquired continuously DAQ, plots and save a waveform in millisecond delay (which is already done in this case), then takes this waveform, finds a specific pic (probably the first) and trace the amplitude of this pic over time (+ 30 minutes, one point each scan which is obtained). Essentially, I have a detector quickly attached to a chromatograph, and I want to select a single ion and monitor the amplitude of this ion. I can draw the waveforms along with it in post processing, but I want to do is to have the 'slow' constantly plot to update and display when it moves through time. Joined the VI will go in, using IMS software V1.3.vi, the paragraph is the "GC" Mode it seems I should use the "peak detect.vi.", but I'm not familiar with this operation, and so I don't know how to show a constantly updated graphic or remove the amplitudes and draw. Thank you for your help,

  <><>

  Eric-WSU wrote:

  I get an amplitude on plot of time, but it does not appear until after all the iterations are stopped

  I have not watched your VI (because I'm in a previous version of LabVIEW), but it's probably because your graphic is outside the loop.

  Here's how you can get a graph of the peaks (all vertices, by iteration):

  

  Or if you want to only a certain PEAK (and how this pic changes with the number of iterations):

  

• create the voltage over time

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  If you are not in the residential group, they have no access to your computer. I recommend also define your network as hidden. That way if they do not know what you called, they have not all hope to connect. (Unless they are very good at hacking)

• HP Pavilion dv2700 laptop displays the message "system CMOS checksum failed" every time you start

  

  Hi @all,

  I have a HP Pavilion dv2700 - kh933ea laptop computer #abv (it is a HP Pavilion dv2799ee Special Edition Entertainment Notebook PC to be exact) that displays the message "system CMOS checksum failed. Press F1 to continue"every time you start the system. My OS is Windows 7 / 32 bit.

  Then I updated my BIOS to version 2.4e, 01-dec-08 Phoenix (the SMBIOS version remained the same before 2.4), but the issue is not resolved. I have attached a screenshot for processor and BIOS versions.

  Can someone guide me on how to solve this problem?

  Thank you very much in advance.

  I don't see the screenshot of your post attachments. Please repost them.

  This error message means that WHAT BIOS is damaged. You will need to have the BIOS flashed in a mobile shop, repair a BIOS or an HP Service Center. Do a search online with Google or Bing repair for a BIOS.  If you keep trying to update the BIOS there will come a time where everything you have a black screen.

• Date and time system continues to change each time the system starts.

  I noticed that the time and date of my home PC gets changed every time the system is booted. The default date is set for Jan. 2008, when in fact it should be July 2014.

  Also, my PC became slow death. I use Windows 7 on 1 GB of RAM, 250 GB PC. I used last my home PC 2 years back, but there has always been someone to use it.

  It shows the OS disk to 7 GB of free, when in fact I never installed or anything unnecessary stored on the disk of BONE; Whatever unnecessary programs were there, I uninstalled them recently, keeping just a few essential ones. After uninstalling, it shows to 7 GB of free, when in fact it should be more than that.

  I use Avast anti-virus, which I think is unnecessary, that its not to protect my PC and as other programs, too, is quite dead slow.

  The system is infected by viruses? Manually, I checked the system for viruses and clean the system of all unnecessary and, program files, but I'm still not sure whether it is a virus or a PC problem.

  I am a COMPUTER analyst, and's just done it 2 days that I use my PC at home. I could format my PC, or where applicable be buy Windows 8 with a new processor.

  Please advise.

  Thank you and best regards,

  Ralph Davidson.

  Hello

  You really need a minimum of at least 2GBs of RAM to run Windows 7 well enough.

  As you have only 1 GB of RAM, which seems to be one of the reasons why it is slow.

  Increase the physical RAM or try ReadyBoost:

  http://www.bleepingcomputer.com/tutorials/using-Windows-ReadyBoost-to-increase-performance/

  Looks like you have some problems.

  Wrong Date/time

  If after you set the Date and time, and then stop and restart your machine and the time returns to the year 2008, and she did this whenever you reset, then restart the PC you have a CMOS battery has failed in the motherboard.

  They cost about $5 and are easy to replace.

  How to replace a CMOS battery.

  http://www.computerhope.com/issues/ch000239.htm

  ________________________________

  For hard disk space:

  This free program allows you to see what is taking place.

  http://www.Jam-software.com/treesize_free/

  Also check how much space system restore uses:

  http://Windows.Microsoft.com/en-us/Windows7/how-much-disk-space-does-System-Restore-require

  _____________________________________

  You can clean your hard drive using these two methods.

  "Delete files using Disk Cleanup"

  http://Windows.Microsoft.com/en-us/Windows/delete-files-using-disk-cleanup#delete-files-using-disk-cleanup=Windows-7

  Using the free CCleaner program:

  http://www.Piriform.com/CCleaner

  In NO case use the registry cleaning Option in CCleaner

  _____________________________________

  Download, install, update and scan your system with the free version of Malwarebytes AntiMalware:

  http://www.Malwarebytes.org/products/malwarebytes_free

  ____________________________________

  And for general maintenance on your machine:

  You should have used Malwarebytes in previous advice here on hard drive

  Download, install, update and scan your system with the free version of Malwarebytes AntiMalware and if necessary make mode safe mode with networking: AntiMalware and if necessary do in Mode safe mode with networking:

  http://www.Malwarebytes.org/products/malwarebytes_free

  'Advanced options boot (including safe mode).

  http://Windows.Microsoft.com/en-us/Windows/Advanced-startup-options-including-safe-mode#1TC=Windows-7

  _______________________________________

  And also scan with the free version of SUPERAntiSpyware

  http://www.SUPERAntiSpyware.com/download.html

  SUPERAntiSpyware Free Edition is 100% free and will detect and remove thousands of Spyware, Adware, Malware, Trojans, KeyLoggers, Dialers, Hi-Jackers, and worms. SUPERAntiSpyware features many unique and powerful technologies and removes spyware threats that other applications fail to remove.

  SUPERAntiSpyware Free Edition does not include blocking in real time or scheduled scan.

  ______________________________________

  THS is a very good program to scan your system to remove adware, etc.:

  http://www.bleepingcomputer.com/download/adwcleaner/

  AdwCleaner is a program that finds and removes the Adware, toolbars, potentially unwanted programs (PUP) and browser hijackers from your computer.  Using AdwCleaner you can easily more of these types of programs for a better user experience on your computer delete and while browsing the web.

  _____________________________________

  And just to be sure, nothing is lurking in the background:

  'TDSSKiller Rootkit Removal Utility download for free'

  http://USA.Kaspersky.com/downloads/TDSSKiller

  @@@@@@@@@@@@@@@@@@@@

  Make sure you have the latest updated drivers:

  Access the site on your computer or equipment manufacturing > Driver and Software Support Section > search your computer or hardware model number > then your operating system > locate the correct drivers > download and install.

  @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

  What are the other steps, which does not include some of the above:

  "Optimize Windows for better performance.

  http://Windows.Microsoft.com/en-us/Windows/optimize-Windows-better-performance#optimize-Windows-better-performance=Windows-7

  @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

  It would be a good idea also run the System File Checker tool to check that everything is correct in the system files.

  "How to use the System File Checker tool to fix the files on system missing or corrupted on Windows Vista or Windows 7"

  http://support.Microsoft.com/kb/929833

  Use the (SFC.exe) System File Checker tool to determine which file is causing the problem and then replace the file. To do this, follow these steps:

  1. Open an elevated command prompt. To do this, click Start, click principally made programs, Accessories, right-click guest, and then click run as administrator. If you are prompted for an administrator password or a confirmation, type the password, or click allow.
  2. Type the following command and press ENTER:
     sfc/scannow

     The sfc/scannow command analyzes all protected system files and replaces incorrect versions with appropriate Microsoft versions.

  See you soon.