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• Shell command slow when using pipe, fast with intermediate file

  - by plang

  Does anyone understand this huge difference in processing time, when using an intermediate file, or when using a pipe? I'm converting tiff to pdf using standard tools on a fresh debian squeeze server. A standard way of doing this is to convert to ps first. Without pipe: root@web5:~# time tiff2ps test.tif > test.ps real 0m0.860s user …

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• .NET Framework 4.0 installation is very slow

  - by Dimitri C.

  On my Windows Vista, it takes a full 12 minutes to install the .NET Framework 4.0. a) Is this normal? b) If not, can something be done about it? The reason I'm concerned about the speed is because it slows down the testing of our product installer considerably. Testing an installer is time consuming already, but this new .NET Framework…

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• Netgear FVX538v2 slow whene connected to Canoga Perkins N525 ETSU

  - by Doomloard

  First of all thank you in advance for helping me. my issue is the old network admin found a problem whene he connected the firewall and the ETSU together the through put went down to less than 1 mega bit a second. his fix was to add a dlink router between the firewall and the etsu which speed it up to 5 mega bits a second. now my boss…

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• SSH login very slow on OS X Leopard

  - by acjohnson55

  My SSH sessions take a very long time to initiate. This applies for logins with and without passwords, interactive and non-interactive. I have tried setting 'GSSAPIAuthentication no' and 'IPQoS 0x00' on the client side, and 'UseDNS no' on the server side, but no dice. I'm really stumped and frustrated. The worst part is that it…

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• Firefox is very slow when establish SSL sessions

  - by yanglei

  Using wireshark, I discovered that Firefox v3.0 gets stuck every time before "client key exchange, change cipher spec" stage when establishing a SSL session. Specifically, it takes 0.8~1.8 second before Firefox send "Client Key Exchange" request. This is unacceptable since our application is HTTPS only. I tested this on IE6 and…

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• Slow wifi from Windows Server 2003 virtualized in XenServer

  - by John Clayton

  I'm a brand spanking new user of OS X, coming from a lifetime of Windows use. I've been setting up my new Macbook Pro and have run into a very unusual problem. Over wifi, I am unable to copy files to or from my Windows Home Server. The problem seems to exist only over wifi, and only to WHS. Here are the details of my setup: …

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• Why is Apple System Image Utility so slow?

  - by Jon Rhoades

  I'm using Apple System Image Utility (SIU) on Snow Leopard 10.6.2 and I am rather disturbed it takes over Three hours to make a Netrestore or Netboot image. I'm using as the donor machine a brand new iMac and as the imaging machine a brand new iMac connected using target disk mode & Firewire 800. The hard drive size and…

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• FreeBSD slow transfers - RFC 1323 scaling issue?

  - by Trey

  I think I may be having an issue with window scaling (RFC 1323) and am hoping that someone can enlighten me on what's going on. Server: FreeBSD 9, apache22, serving a static 100MB zip file. 192.168.18.30 Client: Mac OS X 10.6, Firefox 192.168.17.47 Network: Only a switch between them - the subnet is 192.168.16/22 (In this…

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• NTFS write speed really slow (<15MB/s) on Ubuntu

  - by Zulakis

  When copying large files or testing writespeed with dd, the max writespeed I can get is about 12-15MB/s on drives using the NTFS filesystem. I tested multiple drives (all connected using SATA) which all got writespeeds of 100MB/s+ on Windows or when formatted with ext4, so it's not an alignment or drive issue. top shows…

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• Win 2008 R2 - copying TO disk is very slow, copying FROM is more or less okay

  - by avs099

  I have Windows 2008 R2 SP1 with 4 identical SATA disks (Seagate Barracude 7200) in RAID 5 array. It has 4Gb of memory; all recent updates are installed. Problem: when I copy large file from one folder to another, I get about 10MB/s average speed. When I read this file from network share via 1Gbps connection - I get…

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• One network, two macbooks, one is fast and the other is slow

  - by Brendan

  I really need help for my friend. I know next to nothing about computers. My roommate and I both have macbook pros from the same year running OS X, are both connecting wirelessly to the same xfinity wifi, and while mine runs perfectly fine, my roommate complains that his works very slowly and times out every few…

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• ASA Slow IPSec Performance with Inconsistent Window Size

  - by Brent

  I have a IPSec link between two sites over ASA 5520s running 8.4(3) and I am getting extremely poor performance when traffic passes over the IPSec VPN. CPU on the devices is ~13%, Memory at 408 MB, and active VPN sessions 2. The load on both of the the devices is particularly low. Latency between the two sites is…

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• HTTP downloads slow - FTP of same file very fast - Windows 2003

  - by Paul Hinett

  I am having some issues with download speeds on my site via http, i am averaging around 70kbps downloading a file that is around 70mb. But if i connect to my server via FTP and download the same file on the same computer / connection i am averaging about 300+kbps. I know my server has alot of connections at any…

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• Apache2 slow serving static while healthy

  - by user45339

  My Apache status looks like; 201 requests/sec - 98.8 kB/second - 504 B/request 85 requests currently being processed, 345 idle workers _____CCW_C_____C__C__C_R____C_WC_________C__C____CW__C__CCC_____ __C____W______C___C___CW__C_C______C__W_C__C_____CCC____C______R…

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• Ubuntu server very slow out of the blue sky (Rails, passenger, nginx)

  - by snitko

  I run Ubuntu server 8.04 on Linode with multiple Rails apps under Passenger + nginx. Today I've noticed it takes quite a lot of time to load a page (5-10 secs). And it's not only websites, ssh seems to be affected too. Having no clue why this may be happening, I…

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• Extremely slow internet-connection?

  - by Martti Laine

  Hello Few days ago I opened my computer as I always do after school, and got pretty amazed about my 1.27kb/s download-speed. It has continued for few days already. We have a wireless network, which is used by 3 computers. Normally I've gotten 200kb/s (I think we…

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• Very slow disk performance on Dell PowerEdge 2950 w/ PERC 6/i running RAID 10

  - by vocoder

  I recently set up a server running Ubuntu 10.04 LTS on a Dell PowerEdge 2950 server - it has 6 500 gb 7200RPM SATA drives setup in a RAID 10 config. I am seeing extremely poor disk performance - the RAID array reports all disks are normal and using MegaCLI, it…

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• Why is Wifi data transfer is slow?

  - by Ali Azam Rana

  I have a wifi router which was attached with my modem, and the pc was connected to the wifi router through an ethernet cable. Yesterday I moved my modem and router to another room and connected my PC with wifi through an external wifi usb dongle (tp-link…

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• IIS7 FastCGI downloads quit at 4128760 bytes on slow connections

  - by eingko

  I'm using FastCGI via IIS7 to host a PHP application. For whatever reason downloads that are streamed via PHP (i.e. a script that outputs a file/bytes as a response) download perfectly fine on high-speed connections but on anything slower (even on DSL)…

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• Slow transfer with memory stick (819 kb/s)

  - by Nrew

  What do I do to optimize the file transfer rate of a Memory Stick Duo? The file transfer was not like this when it was still new. Can reformatting give new life to a memory stick? It takes about 20 minutes just to transfer 1Gb of file from computer…

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• Internet very slow when upgrading to Ubuntu 9.10

  - by roojoo

  I was running Ubuntu 8.x on my desktop and everything worked fine. Im using wired internet and it worked perfectly, pages loaded pretty fast. However, when I decided to upgrade to 9.10 the upgrade failed at some point, however I was left with what…

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• HAproxy with MySQL Master-Master Replication incredibly slow

  - by Yayap

  I have two MySQL servers in multi-master mode, with an HAproxy machine for simple load balancing/redundancy. When I am connected to one of the servers directly and try to update about 100,000 entries, it is completed including replication in about…

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• How to debug slow queries in Django+Postgres

  - by lacker

  My database queries from Django are starting to take 1-2 seconds and I'm having trouble figuring out why. Not too big a site, about 1-2 requests per second (that hit Django; static files are just served from nginx.) The thing that confuses me is,…

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• informix odbc connection slow to open in asp.net

  - by zombiegx

  I have an application that takes a long time to open odbc connections (like 20 sec) also takes forever using arcmap and arcsde but when I try the connection on the odbc data source administrator, it tests it really fast Does anyone have any idea…

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• Troubleshooting painfully slow Windows XP boot

  - by shan

  When I reboot my machine, it takes around 10-15 minutes to boot. Tried removing unused programs, disk defragmentation, check disk, but I'm not able to identify the issue. Any ideas to troubleshoot to see whether there is any failure, trying to…

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