Search Results

Search found 59975 results on 2399 pages for 'data comparison'.

Page 760/2399 | < Previous Page | 756 757 758 759 760 761 762 763 764 765 766 767  | Next Page >

• How to get top command output to show rake arguments?

  - by wbharding

  In the past, all of our servers have automatically shown command arguments passed to rake when we view them in top. For example: But on this particular server, we get this instead (picture is top running, showing the rake command, but not showing any of the arguments that had been passed to rake): Both servers are running Ubuntu (though the server without rake commands is a newer flavor of ubuntu). Both run rake through ruby enterprise edition (as powered by rvm). Can't seem to find any documentation on how top chooses what to show in the "command" column, other than the obvious "more data/less data" toggle (all screenshots are shown with the extra data enabled. Anyone encountered anything similar to this?

  Read the article

• restoring myisam mysql db on a different machine

  - by RainDoctor

  I have copied the web db directory(/var/lib/mysql/data/web/), when mysql is not running. I transferred this directory to another machine, where mysql is running. web db's stuff is myisam based. I am thinking about how to restore this on a different server. The strategy I have on my mind is the following. copy the data directory of web db to the new server. on new server, 'create database web', which creates a directory in /var/lib/mysql/data copy all files from the step to the new directory created in 2. bounce mysql My question: how to deal with information_schema for this new db?

  Read the article

• Excel formula - sometimes array formula, sometimes not

  - by Jonas

  I want to write some data to an Excel file, and I want the first page to show a summary of the data that are spread all over the sheets. The individual data items on a sheet can be included or excluded, and I want the summary to be calculated only on the included values. Thus, I thought I'd use a formula like this to show, for example, an average (for which empty fields shouldn't be counted, either): =AVERAGE(IF('dataSheet1'!$B:$B=1,IF('dataSheet1'!$I:$I<>"",'dataSheet1'!$I:$I,""),"")) If I have this formula in dataSheet1, everything works fine. If I have this formula in the summary sheet, I need to enter it as an array formula, and I have to specify the exact ranges to make it work. Is there a way (aside from adding the average in dataSheet, and then referencing the result in summary) to make the formula work without having it turn into an array formula?

  Read the article

• What are the performance differences between PCI-Express x16 and x4

  - by Cestarian

  I have two PCI-Express 2.0 x16 slots on my motherboard, but one of them is actually just x4. For passing through my graphics card to a virtual machine I need to use both slots simultaneously and unfortunately, the easiest way for me to achieve that is putting the stronger card in the x4 slot (secondary slot; I need the stronger card to be in the secondary slot, not the primary). As such I am wondering what sort of noticable performance differences I can expect from using the x4 slot with a strong card as opposed to having it in the true x16 slot. Does it limit the performance so much that the strong card in the x4 slot will actually perform worse than the significantly weaker card in the x16 slot? (For spec comparison I am using a GTX-670 in the x4 slot and GTX-550-Ti in the x16 slot) What implications does this have?

  Read the article

• ls returns nothing only in certain directories

  - by Jakobud

  I have a raid drive mounted here: /data/ And certain directories like this one: /data/somedir/somesubdir/ when I run ls w/ or w/o any flags, terminal doesn't return anything. It does not return an empty directory listing. It simply goes to the next line and sits there blank with no prompt coming up. I cannot CTRL-C out of it. I have to close this terminal instance and start over. At first I thought it was something to do with the ls command, but its pointing to /bin/ls and I can ls other directories just fine. Also, running this find /data/somedir/somesubdir immediately finds all the files just as expected.

  Read the article

• Netcat server output with multiple greps

  - by Sridhar-Sarnobat

  I'm trying to send some data from my web browser to a txt file on another computer. This works fine: echo 'Done' | nc -l -k -p 8080 | grep "GET" >> request_data.txt Now I want to do some further processing before writing the http request data to my txt file (involving regex maniuplation). But if I try to do something like this nothing is written to the file: echo 'Done' | nc -l -k -p 8080 | grep "GET" | grep "HTTP" >> request_data.txt (for simplicity of explanation I've used another grep instead of say awk) Why does the 2nd grep not get any data from the output of the first grep? I'm guessing piping with netcat works differently to what I've assumed to get this far. How do I perform a 2nd grep before writing to my txt file? My debugging so far suggests: It is nothing to do with stderr vs stdout Parentheses don't help

  Read the article

• Windows Batch Scripting: Newest File Matching a Pattern

  - by Eddie Parker

  This would be lightning quick in linux, but I'm not familiar enough with windows flavour of batch scripting. Basically I want to look for a series of files matching a certain wildcard, and get the one with the most recent modified date. I've gotten as far as: for %%X in (*.exe) do ( REM Do stuff.... ) But I'm not sure what manner of comparison operators there are, or if there's a better way of doing this. Anyone offer up any good solutions? Ideally it would involve a vanilla install of Vista; so no special trickery like cygwin/etc.

  Read the article

• Duplicate incoming TCP traffic on Debian Squeeze

  - by Erwan Queffélec

  I have to test a homebrew server that accepts a lot of incoming TCP traffic on a single port. The protocol is homebrew as well. For testing purposes, I'd like to send this traffic both : - to the production server (say, listening on port 12345) - to the test server (say, listening on port 23456) My clients apps are "dumb" : they never read data back, and the server never replies anyway, my server only accepts connections, and do statistical computations and store/forward/service both raw and computed data. Actually, client apps and hardware are so simple there is no way I can tell clients to send their stream on both servers... And using "fake" clients is not good enough. What could be the simplest solution ? I can of course write an intermediary app that just copy incoming data and send it back to the testing server, pretending to be the client. I have a single server running Squeeze and have total control over it. Thanks in advance for your replies.

  Read the article

• BES 5.0 and MAPI calls to exchange system

  - by nysingh

  We have been using BES 4.1(5) for a while now and it has been a resource hog on exchange due to high number of MAPI calls. I have heard that BES 5.0 is even worse. the comparison i heard is that BES 4.1 is makes MAPI calls equal to 5 outlook clients per BB user and BES 5.0 makes MAPI calls equal to 10 outlook clients per BB user. can someone confirm if it is true? is BES 5.0 is really that bad in MAPI calls and for exchange performance. ? thanks

  Read the article

• dvd burning software for ubuntu

  - by user23950

  I've tried brasero which is the default software for burning data in ubuntu. But it seems to be malfunctioning. I thought it can only burn image files. And it cannot distinguish what file you are burning. I'm burning .avi files to be burned as a data. But I can only see the option burn as an image file. Do you know of any other software for ubuntu that can burn files as a data?

  Read the article

• Hyper-V core NIC speeds and registry changes

  - by gary

  Good afternoon, On a Dell PE T610 I have Hyper-V core running, with 2 x Broadcom BCM5709C NetXtreme II GigE installed. I have noticed that copying large files 17GB for example, from a network physical server to the Hyper-V host local drive [not vm guest] is very slow in comparison to copying from Physical to Physical servers. Copying a 17GB file physical to Hyper-V host takes 30 minutes Copying a 17GB file physical to physical host takes 15 minutes Can someone tell me exactly what registry nodes I should disable on Hyper-V NICs to improve performance. So far I have gone to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class{4 D36E972-E325-11CE-BFC1-08002BE10318} and set the following to 0 on both physical NICs: *LSOv1IPv4 *LSOv2IPv6 *TCPUDPChecksumOffloadIPv4 *TCPUDPChecksumOffloadIPv6 Should I also disable *TCPConnectionOffloadIPv4 & *TCPConnectionOffloadIPv6? Many thanks in advance

  Read the article

• OpenX : mySql VS PostgreSQL

  - by Andreas Grech

  I have been using OpenX's AdServer with mySql as a backend, and since OpenX allows one to choose between mysql and postgres, I was wondering if anyone ever used Postgres and wished to talk about their experience with it here. Also, is there anyone who maybe tried using OpenX with both and can offer a comparison between the databases ? I am asking this question because I was having some trouble recently with mySql because some tables crashed occasionally and proved problematic because of the overhead they generated; and as a consequence of this, Statistics where not being generated.

  Read the article

• Ubuntu User WWW/FTP

  - by SnIpY

  I have a user named 'user' which I use to login to the ftp of my website. However, this presents me with a problem. If I want to allow my user to access to ftp, I have to typ the following: chown -R user:ftpusers /var/www/ By doing this, my website is no longer available when surfing to it. To make it available again, I have to typ the following command: chown -R www-data:www-data /var/www/ the user 'user' is in both the ftpusers and www-data group. How can I fix this so I wouldn't have to typ this anymore? I'm using apache2 and vsftpd on ubuntu

  Read the article

• How to get average of multiple time series

  - by Supun Kamburugamuva

  I have few computers running. I want to get the average CPU usage of these computers and plot it as a graph. So I've collected CPU usage in regular intervals in these machines. So for each computer I have a data set of time and CPU usage. But the times at which CPU measurements are taken in different machines are not in sync. For example in 1st machine CPU may be measured in time 1, 5, 9. In the second machine CPU may be measured in time 2, 5, 8. I want to get an average data series from these different data sets. Could you point me to some resources? Thanks - Supun.

  Read the article

• Windows Server Backup - Can I restore to a particular revision?

  - by hamlin11

  I'm using Windows Server Backup in Windows Server 2008 to do a scheduled daily backup to a dedicated hard-drive on the server. I noticed that under "All backups" it says I have 45 copies. Does this mean that I can restore to any revision of my data upon system failure? If the answer is yes, then I don't have to worry about taking monthly or weekly snapshots of my data. I'm concerned about a data corruption event occurring that working its way into my backups... then not having a clean snapshot to go back to. Thanks!

  Read the article

• Securely wiping a file on a tmpfs

  - by Nanzikambe

  I have a script that decrypts some data to a tmpfs, the directory is secure (permissions), the machine's swap is encrypted (random key on boot) and when the script is done it does a 35 pass wipe (Peter Gutmann) of the cleartext on the tmpfs . I do this because I'm aware wiping files on a journaling file system is insecure, data may be recovered. For discussion, here're the relevant bits extracted: # make the tmpfs mkdir /mnt/tmpfs chmod 0700 /mnt/tmpfs mount -t tmpfs -o size=1M tmpfs /mnt/tmpfs cd /mnt/tmpfs # decrypt the data gpg -o - <crypted_input_file> | \ tar -xjpf - # do processing stuff # wipe contents find . -type f -exec bcwipe -I {} ';' # nuke the tmpfs cd .. umount -f /mnt/tmpfs rm -fR /mnt/tmpfs So, my question, assuming for the moment that nobody is able to read the cleartext in the tmpfs while it exists (I use umask to set cleartext to 0600), is there any way any trace of the cleartext could remain either in memory or on disk after the snippet above completes?

  Read the article

• Does multiple files in SQL Server when using RAID help reduce conflicts in growth and file-locking?

  - by Dr Giles M

  I've been reading around and get the impression that if you are using RAID then using multiple SQL Server files within a filegroup won't yeild any more improvements, and the benefits are purely administrative (if you started to run out of space or wanted to partition off data into managable chunks for backups/balancing the data around your big server room). However, being a reasonably savvy software person, it's not unthinkable to hypothesise that, even for smaller databases that SQL Server will perform growth and locking operations (for writes) on a LOGICAL file basis, so even if you are using RAID, it seems to make sense to have multiple files in a file group to balance I/O, or does the time taken to reconstruct the data from distributed filegroups outweigh the benefits of reduced locking? I'm also aware that the behaviour and benefits may be different for tables/indeces/log. Is there a good site that distinguishes the benefits of multiple files when RAID is already in place?

  Read the article

• Would Microsoft Security Essentials be adequate protection?

  - by Xavierjazz

  Is Microsoft Security Essentials (MSE) adequate protection for my computer? What is the experience with this product? EDIT. On 2009-10-31 I found out about a comparison of AV Suites. MSE did VERY well. EDIT: One that I found interesting was "Raven", who mentioned that AV software has to hook deeply into the OS, and who better to design this than the designer of the OS. EDIT: My personal experience is that I like it, but I also use Malwarebytes and Superantispyware. Each of them sometimes come up with one the others missed or ignored.

  Read the article

• NVIDIA same chipset, but different implementations - what is the difference?

  - by Horst Walter

  I have planned to buy a graphics card. When searching for a particular chipset (e.g. GTX 460) I find cards of different vendors (i.e. Gigabyte, Palit, PNY, ...). I can figure out differences in frequency, memory, and equipment. When I read test reports, usually a particular NVIDIA card is compared with its ATI/AMD "counterpart" - have not really found a comparison of all vendors for a particular NVIDIA chipset. So in order to make a decision: a) Are the drivers all the same for all the cards of a particular chipset (and provided by NVIDIA or the vendor?) b) How to figure out which card actually to buy. OK, I choose chipset, and memory, and check the card has the required ports, but then ....

  Read the article

• Fourier transform software

  - by CFP

  Hello everyone! After spending a lot of time searching for this, I thought that some SuperUser gurus might know the answer :) I'm searching for an open source application to compute an FFT, that could: * Import a list of points from a text file (in any format, I could write conversion scripts if needed), for example 0,1; 1,2; 4,5 * Compute the associated discrete transform, and output the list of coefficients Ideally, it would also display the plot and the associated fourier decomposition on the same graph, to allow comparison, but this is not absolutely needed. It can be either on Windows or on Linux/Unix. Can you think of a solution? Thanks, CFP.

  Read the article

• HDD is not readable - can I fix this

  - by user1983017

  I have two HDD in my system, but today morning the additional hard disk is not readable. My all data are kept inside the additional HDD. When I disconnect the additional HDD from my system then system boot as usual, but when I connect HDD my system hangs Up in windows boot logo. Please note this problem is not related to HDD order. When I connect only the additional HDD then system shows this error: disk not readable press ctrl+alt+del to restart I can see the name of additional HDD in BIOS. When I connect both HDD i get a continues beep... beeep .. beep sound. Please tell me is my HDD gone dead ? How do I get the data back ? is there any kit for recovering HDD data ?

  Read the article

• Confusion about TCP packet analysis terms

  - by Berkay

  I'm analyzing our network and have some confusion about the terms: this is the 2-packet output from source to destination. from these i have to get some features as describe, pls make me clear... packets with at least a bytes of TCP data payload: it seems tcp.len0; The minimum segment size (confusion is headers are included or or not) The average segment size observed during the lifetime of the connection, the definition: is calculated as the value reported in the actual data bytes divided by the actual data pkts reported. Total bytes in IP packets, should be ip_len value. Total bytes in (Ethernet) The total number of bytes sent probably related to frame.len and frame.cap_len these two terms are describes as, also make me clear about these two terms. frame.cap_len: Frame length stored into the capture file frame.len: Frame length on the wire

  Read the article

• OpenVZ vs Xen, how much difference in performance?

  - by Aleksandr Levchuk

  There is a Xen vs. KVM in performance question on ServerFault. What will be the performance difference if the choice is between Xen and OpenVZ? How is it best to measure? Some may say "you're comparing apples and oranges" but I have to choose one of the two and it needs to be wise choice. Performance is most important to us. We may switching to Xen from OpenVZ because Xen is more ubiquitous but only if performance difference is not significant. In January 2011 I'm thinking of doing a head to head performance comparison - here is my project proposal to our Bioinformatics facility director.

  Read the article

• Database OR Array

  - by rezoner

  What is the exact point of using external database system if I have simple relations (95% querries are dependant on ID). I am storing users and their stats. Why would I use external database if I can have neat constructions like: db.users[32] = something Array of 500K users is not that big effort for RAM Pros are: no problematic asynchronity (instant results) easy export/import dealing with database like with a native object LITERALLY ps. and considerations: Would it be faster or slower to do collection[3] than db.query("select ... I am going to store it as a file/s There is only ONE application/process accessing this data, and the code is executed line by line - please don't elaborate about locking. Please don't answer with database propositions but why to use external DB over native array/object - I have experience in a few databases - that's not the case. What I am building is a client/gateway/server(s) game. Gateway deals with all users data, processing, authenticating, writing statistics e.t.c No other part of software needs to access directly to this data/database.

  Read the article

• Files listed by bash but unaccessible

  - by Cerin

  What would cause the following behavior on an Ubuntu 12.04 system? I've SSHed into a machine as the "ubuntu" user. Running ls -lah /data/* shows dozens of non-empty files (e.g. file1.txt, file2.txt, etc), all owned by the "ubuntu" user/group, and with full read/write access. If I try to cat /data/file1.txt, bash gives me the error "cat: /data/file1.txt: No such file or directory" In short, ls is listing files, but in every other way, the files essentially don't exist. I can't cat them or read them in any way. Even giving all the files 777 permission doesn't change anything. This is really bizarre. What's going on here?

  Read the article

< Previous Page | 756 757 758 759 760 761 762 763 764 765 766 767  | Next Page >