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  • is there anyway to know if your supposedly fully dedicated server is really a virtually resource-sha

    - by siran
    Hi, sometimes I feel my server not responding as smoothly as I would expect (i have a Intel(R) Xeon(TM) CPU 2.80GHz Quad Core), given that for example, the 'top' commands reports a low load < 0.5, CPU are almost completely idle ... I maybe have internet connectivity issues, so I don't really know if it's me or if it's the server itself. Is there anykind of benchmarking script (or something analogous) I could run and see the actual performance of the server ?

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  • C# Array or Dictionary?

    - by Valentin
    Hi. I wanted to know is C# array has a constant access speed? I need to store 1000 items in static array, that will be initialized during server startup. This array will be used readonly, so there will be no changes to array. Should I use a simple C# array (new MyClass[]) or Dictionary instead. I am really new to C# and trying to understand how C# arrays access works. Can they be compared to c++ arrays by speed?

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  • Reason behind system power usage?

    - by kumar
    Hi, when the number of applications running in a pc increases, the power consumed by the PC is also increasing. Is this correct? I think the reason behind this is CPU. Please let me know what role the CPU plays for more power usage. Thanks, Kavi

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  • No improvement in speed when using Ehcache with Hibernate

    - by paddydub
    I'm getting no improvement in speed when using Ehcache with Hibernate Here are the results I get when i run the test below. The test is reading 80 Stop objects and then the same 80 Stop objects again using the cache. On the second read it is hitting the cache, but there is no improvement in speed. Any idea's on what I'm doing wrong? Speed Test: First Read: Reading stops 1-80 : 288ms Second Read: Reading stops 1-80 : 275ms Cache Info: elementsInMemory: 79 elementsInMemoryStore: 79 elementsInDiskStore: 0 JunitCacheTest public class JunitCacheTest extends TestCase { static Cache stopCache; public void testCache() { ApplicationContext context = new ClassPathXmlApplicationContext("beans-hibernate.xml"); StopDao stopDao = (StopDao) context.getBean("stopDao"); CacheManager manager = new CacheManager(); stopCache = (Cache) manager.getCache("ie.dataStructure.Stop.Stop"); //First Read for (int i=1; i<80;i++) { Stop toStop = stopDao.findById(i); } //Second Read for (int i=1; i<80;i++) { Stop toStop = stopDao.findById(i); } System.out.println("elementsInMemory " + stopCache.getSize()); System.out.println("elementsInMemoryStore " + stopCache.getMemoryStoreSize()); System.out.println("elementsInDiskStore " + stopCache.getDiskStoreSize()); } public static Cache getStopCache() { return stopCache; } } HibernateStopDao @Repository("stopDao") public class HibernateStopDao implements StopDao { private SessionFactory sessionFactory; @Transactional(readOnly = true) public Stop findById(int stopId) { Cache stopCache = JunitCacheTest.getStopCache(); Element cacheResult = stopCache.get(stopId); if (cacheResult != null){ return (Stop) cacheResult.getValue(); } else{ Stop result =(Stop) sessionFactory.getCurrentSession().get(Stop.class, stopId); Element element = new Element(result.getStopID(),result); stopCache.put(element); return result; } } } ehcache.xml <cache name="ie.dataStructure.Stop.Stop" maxElementsInMemory="1000" eternal="false" timeToIdleSeconds="5200" timeToLiveSeconds="5200" overflowToDisk="true"> </cache> stop.hbm.xml <class name="ie.dataStructure.Stop.Stop" table="stops" catalog="hibernate3" mutable="false" > <cache usage="read-only"/> <comment></comment> <id name="stopID" type="int"> <column name="STOPID" /> <generator class="assigned" /> </id> <property name="coordinateID" type="int"> <column name="COORDINATEID" not-null="true"> <comment></comment> </column> </property> <property name="routeID" type="int"> <column name="ROUTEID" not-null="true"> <comment></comment> </column> </property> </class> Stop public class Stop implements Comparable<Stop>, Serializable { private static final long serialVersionUID = 7823769092342311103L; private Integer stopID; private int routeID; private int coordinateID; }

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  • What browser or any tool can reduce flash CPU usage?

    - by Stan
    OS: windows XP SP3 While listening to Pandora in Chrome, the CPU usage is almost to 100% for a single core in CPU. Is there any way to reduce CPU usage? Either by using another browser, any plugins that reduce flash CPU usage, or like in Linux, there's a lightweight client - Pithos for Pandora. Thanks.

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  • Toshiba Satellite L655D-S5050 Processor Upgrade

    - by C-dizzle
    I have been searching for hours to see what kind of upgrade I can do with my processor. I just ordered replacement memory so I can go to 8GB instead of 3GB and now want to see what is available for my CPU. Currently this is what is on my laptop: (in case some of you don't know what comes with this model) Windows 7 Home Pro - 64 Bit AMD M880G Chipset AMD Athlon II Dual Core P320 - 2.1 GHz, 1MB L2 Cache The memory I ordered was Crucial 2 x 4GB DDR3 1333 PC3-10600 I'm sure someone out there can help me, because google hasn't been to friendly with me today.

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  • Files served from Apache are slower than other methods

    - by Jiraiya-Sama
    Hi I have a vps with a 1Gb/s line, when running apps on the server I can get (be it not full) reasonable speeds, but when downloading files through apache from this server I never reach close to my line speed usually 600kb/s where I know the line should be able to comfortably do 1MB/s and more. What can I do to increase the download speeds. Is there maybe a freeware or opensource php script that will increase my speeds? Note. I have confirmed that my server can upload at more than 1MB/s, also that I can download at 1MB/s or more. Also I want to increase the speeds without a download accelerator. Thanks for any help.

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  • Q8300 Core-2 Quad vs X3360 Xeon

    - by alchemical
    I'm looking at this ABMX server, and trying to decide on the CPU. I'm purchasing 2 servers, to be used as dedicated web and DB servers for a web site that has low traffic now but could ramp up quickly. Just trying to decide if it is worth about $200 more (per server) for the Xeon vs the core-2. Passmark rates them at 3567 and 4153, which didn't seem that different. I'm not planning at this point to need virtualization. I did hear rumors that Xeon stands up better in a 24/7 server environment, but heard others say there wasn't that much difference. Planning to run Windows Server 2008, likely the R2 release, with 8GB RAM.

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  • windows is unresponsive but works well in safe mode

    - by kacalapy
    I was installing a few utility apps and things when my laptop running windows 7 stopped responding. I tried to reboot and still very unresponsive... the mouse moves but i am unable to click on icons or open the start menu. eventually things catch up after over a minute. when i start in safe mode with networking support i am able to operate the laptop at lightening speed and web browsing is a dream. I ran msconfig and shut off all non windows services and still get the same thing. after no results i then got and ran spybot, malwarebytes, and other such tools but got no results. they all show nothing wrong. now what?

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  • Why are they putting "processors" on hard drives?

    - by Celeritas
    What does it mean when they have a processor on the hard drive, how does it work, and what benfit does it have? I don't understand - the CPU is the processor and the hard drive transfers it's contents to RAM. Do have additional processors, preprocess the data some how? Here's some examples Western Digital WD Black WD1002FAEX 1TB "Dual processor speed" NETGEAR ReadyNAS 312 2-Bay Diskless Network Attached Storage "Dual-core Intel 2.1GHz processor and 2GB on-board memory" and routers now have processors too, why's that nescecary? I guess it sort of makes sense - some logic needs to happen for the packets to be read in to know which ports to send them out on, but why did old routers not need them? Example or wireless router with processor: "Dual-core processor"

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  • Can I upgrade my Soltek sl-67a-c motherboard from Pentium II to Pentium III?

    - by jedatu
    I have a Pentium III processor and I thought I would replace the Pentium II on my Soltek SL-67A-C. The motherboard has Slot 1 so the PIII fits in fine, however, when I turn on the computer the bios does not come up. Here's the link to some specs on the board: http://stason.org/TULARC/pc/motherboards/F/FLASH-TECH-INC-Pentium-II-Deschutes-SL-67A-C.html I know that I updated the bios at one time. I see references to a "67af3.zip" bios upgrade file out there but can't find any source to download it. I am thinking I may have to adjust the jumpers on the motherboard to match the speed of the processor, but I am not sure how to go about that. Any suggestions?

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  • Performance issue when configuring non HA VM in cluster

    - by laiys
    Hi, I saw this article http://technet.microsoft.com/en-us/library/cc764243.aspx Quote taken from the link “ Important It is recommended that you not deploy virtual machines that are not highly available on your host clusters. Although you can do this by using Hyper-V (VMM does not allow it), the non-highly available virtual machines will consume resources that otherwise would be available to the HAVMs What kind of resources (CPU,memory, NIC, etc) that non HA VM will consume? Just curious as not all VM (in production) not to be in Failover Cluster and Live Migration. If i put the VM into CSV but did not make it as HA, what impact does it make since i allocate same vCPU, vNic and VMemory into the VM. (not to mention that i lost failover feature). Curious to understand more about this. Please advise. Thanks

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  • How to cope with runaway Flash plugin in Google Chrome browser?

    - by Norman Ramsey
    I'm using Google Chrome for Linux, version 5.0.307.11 (Official Build 39572) beta with the Linux Flash plugin version 10.0 r32. Quite often, the Flash plugin goes wild and pegs the CPU with about 95% usage. Laptop gets hot, battery drains. I can diagnose the problem with Chrome's little process monitor (shift-Esc), and I can even kill the plugin, but then when I actually want to use Flash on a page, I can't find a way to restart the plugin; I have to exit and restart Chrome, which with 30 tabs open is a huge hit. Does anyone know what causes this problem? Does anyone have a better workaround (or heaven forfend, a fix)? [I struct out both with search and with Google's help site for Chrome.]

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  • Hyper-Threading and Dual-Core, What's the Difference?

    - by Josh Stodola
    In a conversation with the network administator, I mentioned that my machine was a dual-core. He told me it was not. I brought up the task manager, went to the perfomance tab, and showed him that there are two separate CPU usage graphs. I have a quad-core machine at home and it has four graphs. He told there were two graphs on this particular machine because of hyper-threading. I used to have a hyper-thread pentium 4 processor back in the day, but I never fully understood what it meant. So what is the difference between hyper threading and dual-core? And how do you tell which one you have?

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  • New graphics card (GTX 760) slowing down entire PC

    - by Cayetano Gonçalves
    My new graphics card is making my PC totally unusable. It boots up really slowly, and when the windows screen comes on, the mouse lags really far behind. Nothing opens at a normal speed. However, when I put in my 5-year old graphics card, it all works fine. I'm currently using a Foxconn Renaissance LGA 1366 Intel X58 ATX Motherboard, Intel Motherboard Intel Core i7-950 Bloomfield 3.06GHz LGA 1366 130W Processor, and a EVGA SuperNOVA 850G2 80PLUS Gold Certified ATX12V/EPS12V 850W Power Supply . I know it can't be the power supply, because I just bought it today to try to fix the problem. I've also installed the newest version of BIOS available for my motherboard. I've also seen extreme variations in CPU while the new graphics card is in, and when the old graphics card is installed, it is much calmer. Any thoughts?

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  • Strategies for very fast delivery of webpages.

    - by Cherian
    I run a website Cucumbertown with an initial pay load of nearly 9KB zipped. All my js is delayed loaded with requirejs and modernizer is the only exception. Now all my webpages are Nginx cached and only 10-15% hits go to the backend proxy. And the cache is invalidated by logged in users as proxy_cache_bypass. So for an anonymous user its nearly always a cache hit. I have some basic OS tuning with default via ip dev eth0 initcwnd 15 net.ipv4.tcp_slow_start_after_idle 0 Despite an all cache & large initcwnd my pages still take 2.5 – 3 seconds. I have a yslow score of And page speed at Are there strategies that can help deliver webpages even faster than this? Deliver pages at 1+ second time for 10KB payload? Notes: My servers run of a fairly good data center from Linode at Fremont.

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  • Operation System Clone from a Motherboard to Another

    - by Devian
    Lately we had an idea with my Family of building a Super Computer from Scratch. So while we were planning on building our setup, one idea came to my head that it seems possible but i want also your opinions. Lets say that we have 2 ATX Motherboards and 1 MicroATX. Motherboard Setup: 1x ASUS Rampage Extreme Black Edition 1x Intel Core i7 4960x 4x GTX Titan 8x 8GB 1866 Ram Motherboard Setup: 1x SuperMicro X9DRG-QF 2x Intel Xeon E7-8890V2 1x nVIDIA QUADRO K6000 4x nVIDIA Tesla K40 128 GB 1866 Ram And imagine a Solid State Drive with a Switch connected to both of the MotherBoards Can i edit & copy all the data of The first motherboard's RAM to The Other's to be able to continue operating my current Operation System after switching the SSD to the Second Motherboard, from the Second MotherBoard and vice versa? Les say my "Switch Application" modifies everything the Kernel needs to believe nothing happend and continuing its operation from the same point the first motherboard stopped. (Changes on the Device List, CPU Cores, Drivers... etc)

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  • Windows 7 Via Hyperion 4-1 drivers

    - by Gratzy
    I have a clean install of Win 7 on some relatively old hardware. Everything works pretty well however my cpu is pegged at 100% most of the time. Task Manager shows srvchost as being a main culprit of course but also system interrupts. I have a Biostar socket 478 MB with Via chipset. I have tried to find Windows 7 drivers for this but when I download and try to install what VIA/BIOSTAR say should be good for all OS's it will not load. I get a message saying can't find components for this OS. Anybody have any idea where I might find suitable drivers for the Chipset? BTW I'm not using the integrated graphics on the board but have a radeon 4500 pci-e card.

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  • Remote Desktop with resource sharing

    - by Malfist
    I recently removed ubuntu from my laptop and installed Windows 7 because Microsoft's DreamSpark program gave me Visual Studio Pro for free and I want to do some C# programming with it. The problem is that my laptop's screen is small, it's resources are extremely limited, and it doesn't have a full sized keyboard. However, I do have a desktop that is my primary system, and it's got a quadcore and tons of RAM in it, and dual monitors. My question is this, is there a way I can use a program from my laptop, on my desktop, and share my desktops CPU and RAM with the laptop? Everything is connected through a 100 MB/s switch. One caveat, my desktop is running ubuntu.

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  • Running programs in cache and registers

    - by OSX NINJA
    In my operating systems class we were shown a picture depicting a hierarchy of memory starting from most expensive and fastest at the top and least expensive and slowest at the bottom. At the very top was registers and underneath it was cache. The professor said that the best place to run programs is in cache. I was wondering why programs can't be run in registers? Also, how can a program load itself into cache? Isn't the cache something that's controlled by the CPU and works automatically without software control?

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  • Why maximum 1.0 Gbit Ethernet connection an old notebook, and only 100 Mbit on newer faster computer

    - by Sam
    Strange problem about Ethernet speed: recently we bought an i7 core computer running Win7 64 bit with an onboard Gigabit Ethernet controller (Realtek PCIe Gbit Ethernet Family controller). Connecting this new fast pc directly to our brand new ASUS Gigabit Ethernet router via CAT6 cable(!) shows up the adapter status (see picture attached) only 100mbit, while the router is capable of 1000 mbit. More facts: Connecting an 8 year old IBM notebook with gigabit ethernet to the same cable end shows 1.0 Gbit connection in its adapter status. Speedtest.net shows 35 mbit/s down on the new computer Speedtest.net shows 78 mbit/s down on the old rusty IBM notebook. We have an 120 mbit down internet connection, which we we truly receive on another pc (also directly connected to the router) How to get the 1.0 Gbit going in the new pc ?

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  • Firefox being really sluggish on php.net website?

    - by Rory
    Is it just me, or is firefox (3.5 on Ubuntu 9.10 karmic) really sluggish when opening the PHP.net website? When I have several tabs open with just the PHP.net website, and I tab up and down (with Control-PageUp/Down), it's slow to change tab. If I do it quickly, then firefox freezes for a few seconds (I know because it goes grey, which is a compiz feature to show unresponsive windows). The CPU usage also goes up when I'm tabbing to PHP.net pages. UPDATE: This appears to happen for all PHP.net webpages. For other pages, on other sites, Firefox is fine (for me).

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