SG200-26 - poor gigabit performance 12to14MB/s

Similar Questions

• Intel SRCS16 on ESX4 - poor write performance

  Hello world!

  I need to change HD on one of my ESX hosts that have only 250 GB of total space, while we buy 5 HD 1 TB.

  This weekend, I put another control (Intel SRCS16) Raid and connect a 1 TB just to copy a VM of old HD to the new.

  Matrix Raid took less than 1 min.

  Creation of partition on the raid drive took less than 1 min. (with fdisk)

  Partition formatting took more than 3 hours (with mkfs.ext3)

  Test write performance with: time dd if = / dev/zero of=/mnt/share/test.test bs = 1 M count = 1024

  And took approximately 18 min. (1 Mb/s)

  Research on google, I find some useful links.

  On the Vmware communities, I found this: http://communities.VMware.com/thread/105552?start=0 & tstart = 0

  But it does not work.

  Someone has an idea?

  Thanks for your help

  SRCS16 Intel has some extremely poor write performance without cache enabled writable. For normal operations with write cache, you should have BBWC (battery backup). Enabling write without BBWC cache may lead to the loss of data in case of power failure.

  UPD. See http://www.intel.com/support/motherboards/server/srcs16/sb/cs-020502.htm.

• Poor search performance clustered with table of singles (100 k)

  In a data entry project, I created a data type to store regular data. I have a cluster (see photo) which consists of a name, StringData, Numericaldata and ArrayOfSinglesData (predefined 100points k). Thus, every piece of data can be a scalar string, scalar number or an array of numbers.

  I then do a picture of this for all of my variables, maybe 150 or more.

  Works well, but the performance when adding new data (search for the exact name) is pretty poor.  Very high CPU and many even page faults for the slow connection like 1 to 10 times per second.

  The entrance to the data add method is an array of (stringname, DataString). So for each new data I loop over all the variables, find the one with the correct name string and add new data (replce the scalar chain and the number, add to arrayOfSingles).

  Given that I have 150 variable, as I thought a linear search should be ok, but probably the program moves also around 100 k singles for each comparison, or it's my idea at least.

  Can you suggest which is a good thing to do to improve performance?

  I added a search binary smarter, but it was necessary to sort variables, and since I have two names for each variable (called internal and external) that I use when you add, it helped only for half of the research.

  If I find the time I would like to divide the cluster so that all ArrayOfSingles are separated, but maybe you can tell me immediately if it is useful?

  (Labview, 2012sp1)

  Like Gerds link watch I suppose you're looping in the table looking for your name?

  I just tested, and using DVR to extract only the ID and grabbing then a single element are fast enough. I will attach my test so you can try it for yourself.

  /Y

• Poor Oracle Performance consistency running concurrent queries

  We have 600 million records in the cache must be retrieved on queries (filter or Multi Extractor, we tried both), but we are faced with poor performance when we increase concurrency, we use 5 son of job by node Manager representing a total of 300 sons, we are not able to get a rate higher than 400 records/s (that is, each node consistency to recover 6 records/s) It would take too long (nearly 20 days) to 600 M of process records. This means that consistent performance are poor until the database.

  The improvements that we tried:

  We have created the index (index simple and compound), implemented from POF, tunned shuts down the JVM to reduce the GC, configured network communication (doesn't any sense cause we run everything on the same machine, but we tried), increased coherence nets, implemented best practices and after all, we tried to run on Exalogic , and after all, we had the same problem.

  The material on our tests, we used:

  -Dell R910 with 1 TB of Ram and 80 processors;

  -Oracle Exalogic X 3.

  Each node consistency is using 16 GB of Ram, and we use a distributed Cache.

  Before dropping out of coherence I would like to know if there is something more, we can try.

  We opened the SR and after many tests, that we abandoned consistency, we changed the technology, and now the Solution works well. We understood that the consistency is just for the cache and not for intensive query.

• Satellite P100 PSPAD: could not update the BIOS 3.8 and a poor video performance

  Hello

  I have a video performance of bad quality on my machine as well as the fan power of the issues.

  To add to my frustration the WinPhlash program included in the BIOS version 3.8 empty out trying to flash which gives a PHLASHNT. SYS failed to load the message with different error codes (codes 5 and 147 depending if I launch the exe, as it is extracted from the ZIP, or run the files extracted independently).

  I checked all permissionings on the record and I definitely full control - but still a generic message of "check your accounts, if you do not have permissions please log in again!" is displayed.

  help with my problem of BIOS would be apreciated.

  [Edited by: admin on July 6, 2007 11:10]

  Hello

  but as the average it s absolutely the safest office upgrade firmware on at the level of the BACK. Or at least using the UBCD4Win, which is a beautiful cd live windows for maintenance.

  Welcome them

• Poor battery performance since OTA 2.5 update

  Since I've updated my ThinkPad tablet to build number ThinkPadTablet_A310_02_0039_0086_US I had low battery performance. (slowly, quickly discharges costs) Has anyone else seen elsewhere? By another thread here, I saw that this particular update includes an update of the firmware of the battery improved performance, but that has not been my experience.

  Anyone know how to downgrade the firmware of the battery to see if that helps? Or if a factory reset would affect the firmware of the battery?

  Don't know what your position is, but for most 2.5 updates, you can download them from the Lenovo site and install manually. You don't know the American version has been officially released yet, but bsnf posted a link at the beginning.

• Poor video performance on a cold start

  I have a question where I get poor fps in games on a cold start, but if I restart the computer, the fps is ok.  I used Passmark 3D Mark test to try to understand what was going on.  The graphics card is a GeForce GTX 770.  On a cold start mark 3D score was 2924 which is much too weak for this card.  I then restarted the computer and retested and got a score of 6710 which is just in the range that should be the 770.  I think that the rules on a graphics card problem.  This could be a Windows problem?  I am running Windows 7 Home Premium.  I hope someone can give me an answer to this.

  Thanks for your help, Paul

  It is not a Windows problem.

  Do you also have lower frame rates when you play a game without having to reboot?

  If this isn't the case, don't worry about this. Synthetic benchmarking tools cause many people cancel you worry.

  .

• VM have poor graphics performance. Help, please

  Hello VMware - community

  first of all, sorry for my bad English and I hope that you can understand me a little.

  At home, I don't have a separate server, I'll use my normal computer for virtualization.

  My computer has the componetns of following equipment:

  HOST HARDWARE

  Intel Core i7 4770 k
  MSI Z87 - G55
  GTX980 OC
  16 GB OF DDR3 MEMORY

  MATERIAL COMMENTS

  3 vcores

  3 GB RAM

  3D Graphics"is selected.

  After installing the 12 pro workstation, I created a virtual machine with the operating system "10".

  After the installation of Windows 10, I installed the vmware tools on the commenting system.

  My problem is that the performance of this virtual host is not satisfactory.

  For example: when I move a window on my screen, then his execution identified. (no Jersey... no smooth movements).

  The hardware of the host and the comment system are not occupied.

  Then, I checked the same situation with the free product, "Oracle VirtualBox".

  Here I have a better performance with soft movements, when I move a window or scrolling on a Web page.

  I think, that my host have sufficient jurisdiction to virtualization a virtual guest system with windows 10.

  Hopefully, you can help me my vm tuning.

  Thanks in advance.

  Drop your number of vCPU in your virtual machine to 2 or even 1.

• Only the Server 2008 machines, poor network performance

  The environment contains 2 x IBM x 3650 servers. The virtual machines that all have two 8 GB of RAM and 4 vCPUs allocated. ESXi 5.1 build 1065491

  
  The network consists of about 40 machines Windows 7 (physical) and 2 servers (ESXi VMs) who are Server 2008 Std ed (one is a SBS 2008 but they are the same "under the hood"). The network is a gigabit w / D-Link switches. It started with me investigating slow network speeds.

  I use iperf to nail down what is happening. It appears when a Win 7 machine is writing data to SMB in 2008 virtual machine, it works fine. But when the W 2008 Server VM tries to write data to SMB in the Win 7 (physical or virtual) machine, I got hurt. Difficulty is the very sporadic network speed jumps between 1 MB/s to 60 MB/s. On average, I'd be lucky to hit 20 to 30 Mbps which isn't even 50% of the gigabit network util.

  At first I thought that the problem may be with the ESXi config so I gave a whole new Windows 7 VM on the same hypervisor which houses the two 2008 VMs server and re-ran the test - when I run a test of my workstation (physical) to the VM 7 Win, it works very well (90 to 100 MB/s both ways). If - Win 7 seems to be good, but both the VM Server 2008 I've got exposed the slow download issue.

  So far, I did the following on Server 2008 VMs:

  • Replace the E1000 w / VMXNET3 NIC
  • Dissolved the 802.3ad aggregation of links to the ESXi servers
  • Make sure that energy saving is off
  • Disable Offload TCP segmentation
  • Uninstalled the AV in case the problem was some kind of antivirus real-time analysis
  • Place the virtual machine on the other x 3650 - the question of speed follows the virtual machine.

  I can't think what to try next. Any advice or ideas welcome.

  Here are the results of a test my W7 desktop for Server 2008 VM: http://pastebin.com/dGZKwxAr

  Now the same test of my W7 desktop to and a W7 VM on the same ESXi host: http://pastebin.com/fugjCvjx

  I did an upgrade on the spot of one of the virtual machines 2008 2008 R2 server and it solved the problem. I'm getting 100 + Mbps in both directions of Win 7 clients now. I think I'll do the same thing to the other server.

• Drive very poor IO performance ProLiant ML350 G6

  Greetings,

  I began to administer a VMs works two Proliant ML350 G6. We used the same material since ESXi 3. The Smart Array is configured in RAID 5, which means that we have installed a write cache (256 MB). I opened the case to find that we DO NOT have a battery. I did a few tests using HD Tune running right on one of the virtual machines during after hours (very low load on the system) and the disk i/o was horrible! About 35 MBs write average! WHAT? After having poking around on the web, I've learned that without an update of the battery pack, the controller refuses to apply it's full hardware acceleration and rewrite the features. ESXi also does not implement any kind of acceleration of the reduction and relies totally on the controller in order to give him. in any case, to have bought a 1 GB FBWC (write Flash based Cache) would give us battery performance?

  In fact, I'm impressed, you saw 35 Mbps without BBWC/FBWC! Usually, you would see something between 10-15 MB/s in write mode and troughs (without BBWC/FBWC) and > 80 MB/s (more probably) write back (with BBWC/FBWC) mode.

  André

• Poor XP performance

  Has anyone seen a problem where the Windows XP/2003 virtual machine CPU performance are significantly worse than Windows 2000 on the new processors Intel? I've seen this with ESXI 4.0, 4.1 and 5.0 now. I tried uniprocessor and multiprocessor HALs, I converted the machinery existing, facts fees installs and always get the same result. I use a simple Perl script as my reference - in memory manipulation. I see the problem on a Pentium Dual - Core E5400 and Quad-core Intel Xeon E5410 2.33 GHz. On a Dual-core Intel Xeon 5150 2.6 GHz or a Dual-core Opteron 2220 2.8 GHz XP and 2000 produce identical results.

  I started looking into this when I compared a real application and noticed that he was slower on the fastest processor.

  I suspect that your most recent processors use hardware-assisted virtualization, but binary translation is actually better for these people, due to frequent bouts of TPR. This problem is often exacerbated by running antivirus software in the comments.  However, Windows 2003 should not have this problem if you have installed Service Pack 1.

  Please see "Scénario 2" on page 6 of http://www.vmware.com/files/pdf/perf-vsphere-monitor_modes.pdf.

• poor network performance

  Hi all

  I'm trying to convert a physical server to a virtual machine. I'm trying to use a \\partagereseau to store the new virtual machine. But I only 0.1% of my network gigabit on the target server. To create a virtual machine from a physical server with 6 GB of disk space, I need for ~ 5 hours.

  My configuration:

  VM Ware Enterprise (bootCD) 3.0.2u1 converter

  HP DL380 G4 Server

  HP ProCurve Gigabit Switch

  I tried different configurations. But there is no difference between 100Full and auto. I have configured the switch in different ways (1000 auto, auto, 100Full), but there is no difference.  Also, the target server (connected to the same switch) can use gigabit.

  My guess is that the network included for the bootCD driver are insufficient.

  Does anyone have an idea for my problem?

  Thank you in advance.

  Florian

  Hi fLOSt

  What is the destination of your conversion - ESX or hosted (workstation for example)?

  Also, have you checked the transfer speed of the physical server to share you mentioned without conversion? (that is, just try to copy a large file)

  Plamen

• Poor video performance

  I would like to try to get chrome to Firefox, but there is a question that makes it impossible. When I play a video with Firefox it works very slow, and worse than chrome quality. For example, when I develop the video full screen, happening very slowly, and the only way to exit full-screen mode is to press Esc. But in Chrome, everything works fine. I recorded a video with a demonstration of it. Please, check this (https://goo.gl/eTtOku). My system is Xubuntu 14.04, video Radeon HD 7640 G with fglrx drivers.
  I don't use Flash, and hardware acceleration is enabled.

  I found a solution that works for me. I installed firefox ESR.

• Lenovo W540 poor network performance

  My company recently bought a Lenovo W540 (Intel i7-4700MQ @ 2.4 Ghz, 16 GB RAM, Windows 8.1 pro 64-bit) for me to use when I work remotely. I must say that this thing has been an albatross on the first day. While he usually makes evil, wifi is the worst I have ever known. The W540 can strike only a fraction of the speed of the network of my 4 year old Dell Latitude E6400 (1.1 Mbps compared to 2.7 Mbit/s on average). Connectivity is not very reliable and I always lose my VPN and VoIP connections.

  I updated all the drivers available from Lenovo and Intel but also removed most of the pre-installed Lenovo bloatware. Before doing so I could only gerer.6 Mbps on a good day - using my 3 G phone captive was faster and more reliable.

  I contacted the support twice for assistance. Their best offer was to drive me an hour for the service center for support.

  I am at my wit's end and would appreciate any help you can offer before I send this back to the Lenovo with a pot of vasaline.

  To me, it seems that people who possess the W540 with card Intel 7260 have good arguments for a class action suit. My company bought 4 of these laptops. Lenovo has offered no solution or compensation to continue to ship a horrible piece of technology. I don't think we will buy whatever it is out here on Lenovo.

• SG200-50 Cisco GigaBit Smart Switch - can not update FW

  Hello

  I tried to update the FW, but get this message:

  Backup/upgrade the Firmware/language

  Bytes transferred: 7339520 Status: Copy failed Error message: Copy: Code SW file size is more

  I tried to upgrade to version 1.4.0.88 release 1.3.7.18

  The boot loader is version 1.0.0.1

  SOM hope you can help me to update the FW.

  Fr. Torben Grosen

  TorbenVejle,

  My name is Ishmael. IAM with Small Business Support Center. From my understanding, you tried to update firmware and its not not downloading. I like to think to upgrade the boot first, code before trying the firmware. Startup code are on the same zip as the firmware folder. I tried the same thing in my lab with SG300 with an initial bootstrap code and then I upgraded to 1.3.5.06 allowing the firmware to download.  So give it a try and let me know how it turns out.