Search Results

Search found 1282 results on 52 pages for 'overhead'.

Page 17/52 | < Previous Page | 13 14 15 16 17 18 19 20 21 22 23 24  | Next Page >

• Huge email sizes when using mail merge in Word 2010

  - by Nic

  So I've designed an HTML template to send out some emails on. The code is fine, everything looks great there, and it tests just fantastically. I was sending out putting my recipients in the BCC field, but I decided to make it a little more personal and open the file in Word and do an email merge. The HTML file itself is 3.06kb and contains an img src to an absolute URL, which is about 125kb (a little large, I know, but it's very important). When I merge the file from Word 2010 - Outlook 2010, the email size jumps to about 250kb. It's not much, I know, but I'm a gigantic nerd and I'm stuck thinking it should be about 5kb with MIME overhead. Here's the file list on one of the test emails: File Size image001.png 104366 image002.gif 43 MESSAGE 1259 Mime.822 152575 TEXT.htm 5712 Since the img src is specified, I'm not sure why these are coming through. If this is an issue inherent to Outlook, I'd be happy to explore other options.

  Read the article

• Performance affects of compressing Program Files on Windows / NTFS

  - by SRobertJames

  What are the performance affects of compressing Program Files on Windows NTFS? On a fast, multicore machine, the overhead of decompression is minimal. Machines are generally disk bound, and if you can reduce the disk load by compression, you often speed things up. (Microsoft says that the built in compression of Windows Search indexes actually improves speed for this reason.) On the other hand, Windows' virtual memory is complicated. Perhaps if files are compressed, they can't be paged out simply. And there may be other issues. In short: On a fast, multicore machine with a relatively slow disk, what performance affects will compressing Program Files have?

  Read the article

• serving static file from cookieless domain: alternative cookieless directory

  - by Simone Nigro

  I'm trying to follow all the guidelines of "Google Page Speed??". The directive "Minimize request overhead" requires static content (images, js, css, etc.) on a static server (ie cookieless): https://developers.google.com/speed/docs/best-practices/request I do not want to buy a new server and I was thinking of just setting a directory of my site without cookie with htaccess www.mysite.com/static/.htaccess Header unset Cookie Header unset Set-Cookie I do not know if it can be problematic. Looking on google it seems that no one ever has adopted this type of solution, so I think that it is incorrect. What do you think? alternatively you could do www.mysite.com/.htaccess <FilesMatch "\.(css|js|jpg|png|gif)$"> Header unset Cookie Header unset Set-Cookie </FilesMatch>

  Read the article

• SQL Server 2005: reclaiming LOB space

  - by AndrewD

  Hello all, I've got an interesting table in one of my DBs that's confusing me. The table in question has a a few LOB type columns (two nvarchar(max) and a text) and it looks like there's some strange space issues going on. from this query: SELECT type_desc, SUM(total_pages) *8 [Size in kb] FROM sys.partitions p JOIN sys.allocation_units a ON p.partition_id = a.container_id WHERE p.object_id = OBJECT_ID('asyncoperationbase') GROUP BY type_desc; I get: type_desc Size in kb IN_ROW_DATA 27936 LOB_DATA 1198144 ROW_OVERFLOW_DATA 0 (there's just under 8000 rows in the table, each row has a data length of ~10k - not counting the LOB data) here's where it gets somewhat interesting: SELECT ( SUM(DATALENGTH(aob.WorkflowState)) + SUM(DATALENGTH(aob.[Message]))+ SUM(DATALENGTH(aob.[Data])) ) / 1024 FROM AsyncOperationBase aob returns: 76617 As I'm reading it - it looks like the ~75mb of LOB data is using over a gig of space to be stored - I would expect some overhead but not quit that much. Thanks, Andrew

  Read the article

• Analyzing Linux NFS server performance

  - by Kamil Kisiel

  I'd like to do some analysis of our NFS server to help track down potential bottlenecks in our applications. The server is running SUSE Enterprise Linux 10. The kind of things I'm looking to know are: Which files are being accessed by which clients Read/write throughput on a per-client basis Overhead imposed by other RPC calls Time spent waiting on other NFS requests, or disk I/O, to service a client I already know about the statistics available in /proc/net/rpc/nfsd and in fact I wrote a blog post describing them in depth. What I'm looking for is a way to dig deeper and help understand what factors are contributing to the performance seen by a particular client. I want to analyze the role the NFS server plays in the performance of an application on our cluster so that I can think of ways to best optimize it.

  Read the article

• How can I reinstall QoS Packet Scheduler if it was removed from the winxp installation by nLite?

  - by Irwin1138

  I have a WinXP SP3 installation modified by nLite. This particular installation was stripped off the QoS Packet Scheduler. I was advised to remove QoS because of the overhead it produces or something like that. Now, I read this lifehacker post about windows maintenance, and it says that on the contrary, by doing so I may have done more harm than good: Disabling QoS in Windows XP: Rumor had it that Microsoft had permanently tied up 20 percent of your net bandwidth for Windows Update. They didn't, and those who disable QoS, or IPv6, in XP actually end up with some pretty harsh connectivity problems. I tend to believe this, and now I seek a way to reinstall QoS. I tried to install it by going to network adapter properties - install - service, but there is no QoS there. I have the original, untouched WinXP SP3 cd. So, is there a way to bring back QoS into my WinXP installation, preferably without reinstalling windows from scratch?

  Read the article

• MSDeploy - possible to call setAcl on multiple destinations in one go?

  - by growse

  I'm building a nice little continuous integration environment for our development team, based on TeamCity. It's working rather nicely, as it can build a mix of .NET and PHP projects, and push them to our internal and external platforms. I'm primarily using MsDeploy to push everything to the internal platform, as that's all IIS based. However, there's a number of builds where I need to set directory permissions on the destination directory. I can use the setAcl operator just fine, but that only seems to take a single destination as an argument. Therefore, if I need to alter the permissions on 5 destination directories, I need to call MsDeploy 5 times, which seems a lot of overhead. Is there a sensible way around this? Reading the documentation, I don't think MsDeploy takes more than a single argument for the setAcl operator, but could be wrong. Is there a better way for a build server to set multiple directory permissions in one go?

  Read the article

• faster ( squid + apache httpd + apache tomcat )

  - by letronje

  We have a production setup where we have Squid in the front(caching images, js, css, etc) Apache httpd in the middle(prefork + mod_rewrite + mod_jk/AJP + mod_deflate + mod_php(few php pages)) Apache tomcat 5.5 at the end serving all the dynamic stuff. What would be the best way to reduce the overhead of having 3 servers in the request path ? Wondering if replacing httpd with a faster web server like nginx/lighttpd will help. httpd right now does the job of url rewriting(for clean urls) and talking to tomcat(via mod_jk) and compressing output(mod_deflate) and serving some low traffic php pages. What would be ideal replacement for httpd given that we need these features? Is there a way to replace (squid + apache) with a single entity that does caching well (like squid) for static stuff, rewrites url, compresses response and forwards dynamic stuff directly to tomcat ? heard abt varnish cache, wondering if it can help.

  Read the article

• How to back up a network volume to my Time Capsule?

  - by Mike

  I have a Time Capsule that I'm using for my backups. I have a network volume (coincidentally on the same time capsule) that I'd like to back up as well. How can I tell Time Machine to back up network volumes in addition to my main laptop hard drive? PS: yes, I know this setup isn't ideal. It'll incur 2x network overhead when backing up the network volume, plus my data won't be safe in the event of a drive failure since both copies will be on the same disk. However, it will give me some small amount of safety in the event I accidentally delete files on the network volume, among other things.

  Read the article

• PostgresQL on Amazon EBS volume, realistic performance, or move to something more lightweight?

  - by Peck

  Hi, I'm working on a little research project, currently running as an instance on ec2, and I'm hoping to figure out whether I'm going down the right path. We, like a thousand other people, are making use of some of twitters streaming feeds to do gather some data to have fun with and my db seems to be having problems keeping up, and queries take what seems to be a very long time. I'm not a DBA by trade, so I'll just dump some info here and add more if need be. System specs: ec2 xl, 15 gigs of ram ebs: 4 100 gb drives, raid 0. The stream we're getting we're looking at around 10k inserts per minute. 3 main tables, with the users we're tracking somewhere in the neighborhood of 26M rows currently. Is this amount of inserts on this hardware too much to ask out of ebs? Should take a look at some things with less overhead like mongodb?

  Read the article

• Shared FC LVM VG with LVs for each KVM VM. Clvm required?

  - by Cocoabean

  I have 2 virtual machine hosts running Ubuntu 12.04 and KVM managed with libvirt. They are both connected to the same VG which is a LUN on my SAN over FC. I provision LVs on this shared VG for each VM. I don't think I need HA or failover, but I do want live migration between the hosts. Do I need clvm in this case? As long as I don't try to start the same VM on each host should this work? Clvm requires lots of overhead with clustering tools that I don't think I need. I can deal with manually restarting VMs on other hosts in the event of a hardware failure.

  Read the article

• System Monitoring Redundancy

  - by Josh Brower

  I consult in a small business environment where I have two HyperV hosts (with <10 VMs) + a couple other servers. I recently had an issue where one of the HyperV hosts had a CPU issue and it came down, bringing most of my non-critical VMs with it, plus a free piece of software that I use for network & system monitoring and availability. Because of this, and the fact that iDRAC locked up to, I did not get any alerts about the crash. So I am wondering how I can (cheaply) get a redundant availability monitoring system in place--Is is as simple as running Nagios or Zenoss (or whatever) on two different HyperV hosts? It just seems like running more than one copy of Nagios/Zenoss/etc could be expensive and have high overhead. Thoughts? Thanks! -Josh

  Read the article

• Are periodic full backups really necessary on an incremental backup setup?

  - by user2229980

  I intend to use an old computer I have as a remote backup server for myself and a few other people. We are all geographically separated, and the plan is to do incremental daily backups using rsync and ssh. My original idea was to make one initial full backup then never again have to deal with the overhead of doing it, and from that moment on only copy the files changed since the last backup. I've been told that this could be bad, but I fail to understand why. Since each snapshot is comprised of hard links to the unchanged files plus the original changed ones, isn't it going to be identical to a new full backup? Why would I want to make another full backup?

  Read the article

• anti-virus / malware solution for small non-profit network

  - by Jason

  I'm an IT volunteer at a local non-profit. I'm looking for a good AV/malware solution. We currently use a mishmash of different client solutions, and want to move to something centralized. There is no full time IT staff. What I'm looking for: centralized administration - server is Windows Server 2003 minimal admin overhead ability to do e-mail notification/alerts/reporting would be very cool 10-25 XP Clients (P3/P4 hardware) free or discounted solution for non-profits We can get a cheap license for Symantec Endpoint Protection. My past experience with Symantec has been bad, but I've heard good things about this product. However, I've also read that it's kind of a nightmare to setup and administer, and may not be worth it for the size of our network.

  Read the article

• How can I restrict SSH access when the source IP is dynamic

  - by Supratik

  Hi I want to protect SSH access to our live web server from all IP's except our office static IP. There are some employees who connects to this live server from their dynamic IP's. So, it is not always possible for me to change in the iptables rule in live server whenever the dynamic IP of the employee changes. I tried to put them in office VPN and allowed only SSH access from office IP but the office connection is slow in compared to our employee's private internet connection, moreover it adds an extra overhead to our office network. Is there any way I can solve this problem ?

  Read the article

• Macvim lags while Vim on terminal is buttery smooth

  - by SaamJB

  I am running OS X Lion 10.7.3 and Macvim runs significantly slower than vim on the terminal for me. All movement commands in Macvim are much slower. Moving up and down in visual mode is equally as laggy. I see none of this lag when using vim from the terminal. Does anyone know what the reasons may be? I am running NERDtree on every open tab, and I know this contributes some memory overhead and potentially some slow down; but even when I don't run NERDtree Macvim runs much slower than vim from the terminal. Any help in solving this would be greatly appreciated.

  Read the article

• Tools to monitor guest OS performance in vSphere

  - by Quick Joe Smith

  I am looking for some tool or way to retrieve performance data from guest VMs running under vSphere 4.1. I am currently interested in the 4 basic metrics: CPU(%), Memory(%), Disk availability(%) & Network utilisation(Kb/s). The issue I have is that all of vSphere's performance data is from a ESXi host perspective (active, shared, consumed, overhead, swapped etc.) which is far removed from the data from the VM's own perspective. For instance, I have a Windows server VM idling, using around 410MB (~25% of its allocated 2GB) as reported by Task Manager, and this is the value I'm after. vSphere's metrics seem unable to arrive at this figure by any reliable and repeatable means. Is anyone aware of tools that can obtain this kind of data? The simpler, the better.

  Read the article

• Do I need a VPN to secure communication over a T1 line?

  - by Seth

  I have a dedicated T1 line that runs between my office and my data center. Both ends have public IP addresses. On both ends, we have a T1 routers which connect to SonicWall firewalls. The SonicWalls do a site-to-site VPN and handle the network translation, so the computers on the office network (10.0.100.x) can access the servers in the rack (10.0.103.x). So the question: can I just add a static route to the SonicWalls so each network can access each other with out the VPN? Are there security problems (such as, someone else adding the appropriate static route and being able to access either the office or the datacenter)? Is there another / better way to do it? The reason I'm looking at this is because the T1 is already a pretty small pipe, and having the VPN overhead makes connectivity really slow.

  Read the article

• adding remote ssh printer as local printer

  - by guest

  I have SSH access to a remote host (FreeBSD) that has a printer set up. I do not have root access on that host or any other special user rights. Now I want to print directly from my laptop on that printer (Ubuntu 10.10). The problem is that I don't know how to "import" or whatever the the printer, as it needs authetification from my user account (print quota limitations). E-mailing me the files I want to print or scp them every time is a pain, ATM I pipe the PostScript output manually to a ssh command, but that's also a huge working overhead. E.g. when I want to print a foo.pdf pdftops '/path/to/foo.pdf' - | ssh user@remotehost 'lpr -P printername' So, does anyone know of a smooth way to shorten this procedure? Ideally I would just want to use a printername instead of the whole ssh command

  Read the article

• Is it possible to restrict fileserver access to domain users using computers that are members of the domain?

  - by Chris Madden

  It seems domain isolation can be used to accomplish, but I'd like a solution that doesn't require IPsec, or more accurately, doesn't require IPsec on the fileserver. IPsec if done in software has a large CPU overhead and our NAS boxes don't support any kind of offload. The goal is to avoid authenticated users using non-managed machines to access network resources. Network Access Protection (NAP) and the various enforcement points looked promsiing but I couldn't find a bulletproof way to use them [which doesn't require IPsec on the fileserver]. I was thinking when a domain user accesses the NAS box it will first need a Kerberos ticket from AD, so if AD could somehow verify the computer that was requesting the ticket was in the domain I'd have a solution.

  Read the article

• How to set up memcached to use unix socket?

  - by alfish

  While I could use memcached on Debian to use the default 11211 port, but I've had great difficulty setting up unix socket, Form what I'v read, I know that I need to create a memcache.socket and add -s /path/to/memcache.socket -a 0766 To /etc/memcached.conf and comment out the default connection port and IP, i.e. -p 11211 -l 127.0.0.1 However, when I restart memcached I get internal server errors on Drupal site. I'm trying to implement unix sockets to avoid TCP/IP overhead and boost overal memcached performance, however not sure how much performance gain one can expect of this tweak. I appreciate your hints or possibly configs to to resolve this.

  Read the article

• Tuning OpenVZ Containers to work better with Java?

  - by Daniel

  I have a 8 GB RAM Server (Dedicated) and currently have KVM Virtual Machines running on there (successfully) however i'm considering moving to OpenVZ as KVM seems a bit overkill with a lot of overhead for what i use it for. In the past i have used OpenVZ Containers, hosted by myself and from other providers and Java doesn't seem to work well with them.. One example is that if i give a container 2 GB RAM ( No burst) (with or without vswap doesn't matter) a java instance can only be tuned to use at very most 1500 MB of that RAM (-Xmx, -Xms). Ideally, i wish to be able to create "Mini" containers with about 256MB, 512MB, 768 RAM and run some java instances in them. My question is: I'm trying to find an ideal way to tune a OpenVZ container configuration to work better with Java memory. Please, don't suggest anything related to Java settings, i'm looking for OpenVZ specific answers.. Though i welcome any suggestion if you feel it may help me. Much Appreciated, Daniel

  Read the article

• When to use Nginx PHP Fast CGI with a TCP socket instead of a UNIX socket?

  - by user64204

  I've followed this guide to setup PHP in FastCGI mode with Nginx. This guide describes 2 ways of doing it: TCP socket and UNIX socket. I've ran some Apache Benchmark on my locale machine and here are the results: Below tests ran multiple times to get better average statistics: $ ab -c 200 -n 100000 http://.... APACHE: 1800 req/sec NGINX (TCP socket): 2500 req/sec NGINX (UNIX socket): 15000 req/sec As far as I understand, there is overhead with using a TCP socket rather than a UNIX socket, hence the better performance with the latter. However I was not expecting such a performance difference given that the TCP socket is on the localhost, and therefore would like to ask the following question: Q: Given the huge performance gain with using a UNIX socket, what are the configuration scenarios where it would make sense to use a TCP socket instead?

  Read the article

• Howto boot directly into a VirtualBox image?

  - by mawimawi

  I have a running setup as following: Native OS: Windows 7 64bit, 3 Partitions: c: (System) d: (FAT32, here is my vdi file) e: (unformatted) VirtualBox: Fedora 14 running off the vdi file on drive d. Usually this setup is great for me, but sometimes I'd like to run Linux natively, and not inside VirtualBox. Is there a way to boot directly into the vdi file without the Windows overhead? E.g. using a USB stick with some modified Linux Kernel / GRUB that can mount the vdi file directly as "/"? Or copy the contents of my vdi file to the empty partition and somehow use this from VirtualBox (when booting into Windows) AND directly booting into Linux? Hope to get some hints or even howtos. EDIT: yes, sorry. not programming related. I posted the question to serverfault.com (hopefully that's the better site for my question.)

  Read the article

• Howto boot directly into a VirtualBox image?

  - by mawimawi

  I have a running setup as following: Native OS: Windows 7 64bit, 3 Partitions: c: (System) d: (FAT32, here is my vdi file) e: (unformatted) VirtualBox: Fedora 14 running off the vdi file on drive d. Usually this setup is great for me, but sometimes I'd like to run Linux natively, and not inside VirtualBox. Is there a way to boot directly into the vdi file without the Windows overhead? E.g. using a USB stick with some modified Linux Kernel / GRUB that can mount the vdi file directly as "/"? Or copy the contents of my vdi file to the empty partition and somehow use this from VirtualBox (when booting into Windows) AND directly booting into Linux? Hope to get some hints or even howtos.

  Read the article

< Previous Page | 13 14 15 16 17 18 19 20 21 22 23 24  | Next Page >