Questions tagged [bandwidth]
Bandwidth tag should be used when asking questions about data transfer rates over various data buses or network protocols.
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Find source of bandwidth cap
Good day!
There is a group of Ubuntu 22.04 LTS workstations at work that me and my coworker use to run different kinds of jobs. Both me and another coworker are sudoers on the machines, and we are ...
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Can I leave my bandwidth higher than it actually is?
When setting up my internet connection, my router asks for the upstream and downstream bandwidth. What does this really do?
Is this only for limiting bandwidth to proritze between networks? So if you ...
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Thunderbolt 3 - calculate bandwith required by monitors
As described by the Thunderbolt 3 Technology Brief DisplayPort signals transmitted over Thunderbolt 3 links have higher priority than PCIe/USB data so in case the total required bandwidth exceeds the ...
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How to force SQL server to use maximum network bandwidth
I have a program written in Delphi that uses SQL Server 2008 as database engine. I am on a p2p link provided by two nano station m5. When I run a specific query inside of the program, the network ...
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Check Max Thunderbolt 3 Speed
How do I check the bandwidth (max Gbps) of my Thunderbolt 3 port? I'm trying to see if it can handle supporting 4 additional monitors with my Wavlink docking station (so that I can get either 1080p/...
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Diagnosing connectivity/bandwidth issues in multi-level virtual infrastructure
Core Question
How can I both maintain internet connectivity in the L0 Host while also establishing a stable connection in the L2 Client with enough bandwidth to support video conferencing? How can I ...
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D-Link DIR-850L QoS not working
Quality of Service is not working on my router.
My seedbox (Xios) is set to the lowest priority and does not get throttled as it should when any of the higher priority devices require more bandwidth, ...
CommunityBot
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Slow bandwidth with iperf3 when using Windows but Linux runs at full speed
I have a DigitalOcean Droplet that shares a gigabit connection and my college dorm fortunately also has gigabit connection. I noticed data transfers between the two were quite slow so I ran iperf3 ...
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Bandwidth Control with Queue in Mikrotik
good time
I set a bandwidth limit in Mikrotik(simple queues) for each IP, and now I need to set a general bandwidth limit for each of my networks.
My question is how to set a 10M limit for a range ...
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Windows Store downloads are severerely rate limited - why?
Windows Store downloads are severely rate limited on my Windows 11 (10.0.22631.3085 23H2) computer and I can't figure out why (nor can our IT guys). What could be causing it?
The download rate is ...
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What is the difference between bandwidth and bit rate?
I have seen two definitions for bandwidth: "For a transmission medium, the range of signal frequencies it may transmit" and "The maximum amount of data that can be transmitted in a ...
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How to monitor visited websites on a Thomson 585 v7 router?
My home WiFi is being used by many devices, and they are taking all bandwidth, I wanna know which sites they are using, so I can block those sites in Parental control.
In the web interface there's no ...
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How can I manage bandwidth consumption of GoToMeeting?
GoToMeeting sessions hog all my networks bandwidth... I have business class cable and other video/audio apps (e.g. Skype, Google Hangouts or Webex) work properly.
In a session yesterday, I initially ...
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How to use full bandwidth available?
I'm working on a new kind of proxy server using node.js. With cluster module I'm able to fork the process (which are double the number of cores). The server configuration is 8GB RAM, 8 core Intel (...
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Monitoring Internet data from modem
I'm about to get a new ADSL internet connection and the data available is split between me and two other housemates.
As I am going to be the administrator, I was wondering if there is any way to ...
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Expected results of a stream memory bandwidth benchmark
I recently built a Threadripper system and ran the stream memory bandwidth benchmark on it. The results are much lower than the theoretical bandwidth of the system, and I am not sure if these transfer ...
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How to use two internet connections and set one for download and the other for upload?
I have two internet Connections.
DSL 5 mbps Download / 0.5 mbps Upload (unlimited bandwidth)
LTE 10 mbps Download / 5 mbps Upload (10GB limited Daily Bandwidth)
I want to use both connections on my ...
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What causes the unusual high upload when connected to a VPN?
I've noticed an unusual high usage of my upload, whenever a download is running.
The upload is usually somewhere 5-10% of the download bandwidth usage.
I assume the VPN connection itself requires ...
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Will plugging a USB device into a higher standard port improve data transfer rates if the max rate of the original port wasn't being reached?
I have an external USB 3.2 gen 2 SSD that I plug into a front USB 3.0 port on my PC. Let's say that when copying files I get an average transfer speed of less than 200 MB/s.
(lower than both the ...
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When doubling Internet connection speed, will my effective in-house bandwidth also double?
So I'm thinking of increasing my Internet connection by 40 Mbit/s, also doubling it. This is because in the furthest corners in my apartment I have 1 Mbit/s. So when I increase will I get 41&...
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Qbittorrent hogging bandwith even with limits and QoS
I changed ISP a while ago and since then qbittorrent has been hogging all my bandwidth whenever its used and all other devices lose internet.
I have a 500MB d/l and 50MB u/l from my ISP which is twice ...
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Downloading is using all my bandwidth, preventing any other apps connecting to the internet. Why?
This is new. I've been in many locations with many ISPs, i'm even certain this was not the case prior to the past 3-4months on the same ISP i moved into the current property with.
I used to be able to ...
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What's blocking Windows Update from using all resources available?
When watching Windows Update doing its work with Task Manager's performance tab and Resource Monitor open, the update process usually - i.e. ~99% of the time - doesn't max out any of the available ...
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How do you measure the bandwidth used by a given process after it has completed, on Linux?
Is there a way to get a summary of how much bandwidth a given process used on Linux after the process completes? I do not want a monitor, I want something I can look at after the task has completed..
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Bandwidth control using traffic control `tc` on Strongswan ipsec connection
I am in the need to use traffic control tc to regulate the bandwidth.
From what I known is that I can manage the bandwidth using the following
DEV=eth0
RATE="100kbps"
tc qdisc del dev $DEV ...
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How to make RAID-1 (almost) full bandwidth when processing the sequential write/read?
When I read OSTEP chapter 38 about RAID, it says in p10:
The 1/2 penalty assumes a naive read/write pattern for mirroring; a more sophisticated
approach that issued large I/O requests to differing ...
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Does remote desktop redraw the entire screen or just the part that was changed?
If I have a more colorful image on an RDP lock screen, will it redraw the entire screen (thus requiring slightly more bandwidth) or does it just send the parts of the screen that change (i.e. the dots ...
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What's the maximum typical speed possible with 802.11n WiFi for local network file transfer?
I know that:
the theoritical limit of 802.11n Wifi is 450 Mbps in the 5Ghz band (that I use),
the router reports a 450 Mbps speed (using nirsoft's great tool WifiInfoView)
Windows reports a 300 ...
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4k monitor with HDMI, bandwidth not coping with 2560x1600. What do I need to change?
I've just given my old 2560x1600 monitor (Dell UltraSharp 3011 or 3011t) to my parents. Their PC has an Intel mATX early Haswell motherboard, I'd guess about 2013 - 2014 ish? It's got DVI and HDMI ...
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Wireless router bandwidth with multiple clients
Suppose a wireless router has a bandwidth of 54 Mbps. Does this mean that 2 clients (PC's) that are connected to the router can both transfer data at 54 Mbps simultaneously, or will the bandwidth be ...
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TCP Receiver's Window stop increasing
I'm debugging a high-bandwidth TCP connection whose throughput is significantly lower than the capability of the device and the network. The network between these 2 hosts is expected to be high ...
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Max theoretical powerline bandwidth using more than 2 devices and recommended speed for 1 Gbps network ports
I'd like to set up a powerline based network on a 3 storey home. I'd like it to be as reliable and as fast as possible. My network equipment has 1 Gbps ports. I see that some powerline products can go ...
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Bandwidth issue of my gigabyte network
Every device in the network supports gigabyte transferring. All wires are CAT6 (flatten wire).
The maximum bandwidth can only achieve 1000Mbps for less than 24 hours. The next day when I tested the ...
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How to limit the bandwidth/network rate for sshd per user?
I have a computer set up as a server with Ubuntu 18.0.4 sharing with my friends, and using sftp to upload/download files. Recently one of my friends has been doing a large amount of transfer and ...
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How to monitor disk I/O in Linux without iotop?
I recently discovered iotop, which is Python program that monitors disk I/O in real time. It shows me which program is reading and writing the most and the rate.
Iotop is problematic however. Getting ...
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Changing the TCP initial congestion window value in Windows 10
I would like to do some testing with the TCP Initial congestion window on Windows 10 Pro, but it seems the settings are disabled in the Pro version:
Set-NetTCPSetting -SettingName InternetCustom -...
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iPerf UDP no loss but Client/Server bandwidth don't match?
No major loss of datagram occured, but the server bandwidth is extremely low, and don't match the client side, why?
Client command: iperf3 -c 10.255.0.2 -p 5001 -t 10 -i 5 -l 60k -u -b 15G
[ ID] ...
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Achieving 1Gb/s using PCI (not express) NIC
I am using an old PC (Phenom II x940, 3GB of ram) as a NAS. The motherboard's build-in NIC was only 100 mib/s so I bought a used Intel Pro/1000 GT (connected via PCI (!) - not PCIe) to achieve better ...
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What's the difference between GPU Memory bandwidth and speed?
I was looking at Nvidia's series 10 graphics cards' specs and noticed they have memory speed and memory bandwidth specified. Memory speed is expressed in Gbps and memory bandwidth is expressed in GB/...
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Debug slow home network
I don't know how to approach this problem. The TL;DR is that my internal home network is "slow". Here is the setup:
I live in the UK. I have a Sky ER115 router
Directly plugged into the ...
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How can I further identify and fix network speed slowdown on home LAN?
I have been trying to troubleshoot a home LAN throughput issue. I have an Asus router with two boxes, a Windows 11 PC and an Unraid Linux server, connected directly with cat6 cables to 1Gb ports. The ...
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GPU VRAM bandwidth importance for neural net training
my Question in short is:
Is the VRAM bandwidth of a GPU really the bottleneck regarding Deep Neural Networks?
Longer Version:
A guy named Tim Dettmers wrote in his blog, that all the relevant ...
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Cable modem speed limitations
I have been doing some research on different modems and I am getting quite confused about some of the speed numbers in the product specifications. Below are some examples from Motorola modems.
If you ...
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QOS bandwidth error in LB-Link Router
I'm trying to limit my phone bandwidth in LB-Link Router to (24mb/s upload, 49mb/s download)
LB-Link uses kb/s, according to Google, (49mb/s = 392000 kb/s), but I get the following error
"The ...
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Network usage monitoring per device
I have LTE modem connected via ethernet to TP-Link archer ax20. I have 400GB monthly limit and i see that from some time internet usage increase. I want to start monitoring internet usage by device to ...
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Is 2.4 GHz Wi-Fi band shared across routers?
When having a router with a 2.4 GHz connection, I understand from my previous question that it will be slower than a 5 GHz one, but I am confused on the following:
Is the 2.4 GHz more congested due to ...
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How do I determine why my Windows 10 bandwidth is so much lower than my Macbook Pro?
I'm using a Windows 10 machine (Dell Precision 5560 PC) and am noticing that my bandwidth (at least measured by speedtest.net) is 4 to 5 times lower than my MacBook Pro 2017, both on the same network, ...
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Poor network performance over internet, but flawless iperf3 results
I'm using a linux system as a router/firewall, with the following kernel:
Linux gentoo 6.0.8-gentoo-stripped-wireless #1 SMP PREEMPT_DYNAMIC Tue Nov 15 08:54:22 CST 2022 x86_64 AMD FX(tm)-8150 Eight-...
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When is power and bandwidth shared among USB ports?
I’d like to know when power and bandwidth is shared among USB ports on a PC.
Let me give an example and please correct me where I may be wrong:
I have a PC with 5 USB ports: three are USB 3.0 and two ...
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Router bandwitch vs ISP bandwith
when I am using a router for example of 300Mbps, and i have a download speed of 100Mbps and 25 Mbps of upload, when i am connecting to internet, is this speed affecting my lan bandwidth? for example, ...
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