Questions tagged [latency]
Latency is the time difference between the start of an event and the time that the effects become noticeable.
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Use Bluetooth dongle with Blutooth-enabled laptop
I have a Lenovo Yoga 2 ultrabook running Windows 10 that comes with Bluetooth support but lacks aptX support. I have Sony MDR10RBT headphones that support aptX.
The audio latency I experience while ...
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Chrome Developer Tools - Network "Content Download" column
I've got a question about the Chrome Developer Tools - Network Tab - "Content Download" part in the waterfall column. What exactly does this mean? Is latency somehow relevant to this?
Retrieving ...
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How do I optimize Windows disk I/O for high-latency throughput?
Let's say there are 25 processes each which want to read and index a large (say, 1GB) file.
The hard drive may be capable of ~100MB/sec throughput, but the head movement and rotational latency ...
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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, ...
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Why am I getting latency between my modem and my router?
I pay for a 15mbps down, 1mbps up DSL internet plan from TekSavvy Solutions (Canada). At least once or twice a week there will be moments where we get speeds much lower than advertised.
When I notice ...
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Is this keyboard latency test accurate for both PS/2 and USB keyboards? How can I test the latencies of keyboards?
I plugged in my old PS/2 keyboard while getting my USB keyboard clean and dry, and I think I feel it has lower latency, and I want to test the latencies of the keyboards now.
According to the test at ...
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High DPC latency Windows 10, unable to fix
Edit: I am still experiencing this issue. ndis.sys is causing issues and I have not been able to resolve it. I am at a loss of what to do. I have tried reinstalling windows AGAIN, reinstalling drivers ...
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Why using a GPS usb stick increases the latency of my WiFi connection?
I noticed an increase in the latency (+- 20ms) of my Wifi connection when I'm retrieving in the same time the GPS location of my notebook.
I paid attention to get the location via the GPS usb stick ...
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DPC Latency issues caused by storport.sys
I have been having an issue with DPC latency. I have spent hours trying to figure out how to fix it, but I have failed to find a solution.
To begin, I first noticed this issue after I cloned my ...
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Sudden jumps in internet latency
For the past 2 months I've had some weird hitches on my internet.
Every so often (about 5-15 minutes) I get a single short spike of high latency. Below is a capture of the previous 200 ping results.
(...
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How to optimize VPN connection for low latency / ping
I am using a VPN (IPSec) connection to my home router to work on the road and access my home network. Now while having most times a good bandwidth, latency/ping isnt always great. Hence I was ...
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How to objectively measure RAM latency impact on performance
I'm already aware of these questions:
how to know if RAM is my bottleneck
How to determine if CPU or RAM or DISK is the bottleneck on Windows 7
How can I know if the speed of RAM is the bottleneck ...
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Identify latency problems to gaming server
I am playing an online game where the server is physically located in the same city (~10km=6miles). I have cabled internet with WiFi and have a ping around 170-200ms with severe spikes. From my phone ...
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Jitter/High Latency in Windows UDP Stream
I have been using UDP/WiFi to pipe data between an embedded device (ESP32 acting as a UDP server) and my Windows machine. My objective is to send as many short packets (8-64byte payloads) as ...
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Is there a way to stream audio from Windows to macOS with low latency?
I'm looking for a way to stream audio from an application or system output device on a Windows system to a mac over my local network. I need it to be high quality and low latency (less than 50 ms).
If ...
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Low latency keyboards - are they for real?
Having just seen some commercial or other I just realized there could be such a thing as a high-latency keyboard—as compared to a low-latency keyboard. If so, then maybe a low-latency one could be yet ...
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Reroute and tunnel udp connection to another server
I have been trying to establish a connection between a vps and a dedicated bare metal server for a month now. Basically, vps will act as a tunnel to connect to my dedicated server, I'm doing this to ...
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SODIMM timings vs DIMM timigs
I try to google it but there is no information about why timings of DIMM DDR4 3200MHz is better (lower) than timings of SODIMM DDR4 3200MHz ?
I just found that fact on marketplaces, but there is no ...
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Curl Vs Spring RestTemplate.exchange - huge performance diffrence
Under what circumstances a Restful call made with curl would be much faster than Spring's RestTemplate
I have to use Spring's RestTemplate's exchange methods as I am sending a JWT token as an Http ...
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Nvidia Container causing audio popping and Explorer lag
I have been having this issue where my audio starts popping and crackling quite frequently (tried various audio devices, not specific to one device) and Windows Explorer generally becomes laggy and ...
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Single channel CL9 vs dual channel CL11
I have to upgrade the DDR3 RAM of an old PC. At the same price, do I get the best performance with a single channel cl9 or a dual channel cl11? Both 1600MHz
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What's the minimum network latency for a 1000 km connection using optic fibers?
I know most of the network latency for short distances is due to router processing times. But for longer distances the speed of light also counts. And it's different from the speed the light in the ...
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Seeing huge latency using FFMPEG to send RTMPS
Seeing huge latency when running FFMPEG to (re)stream camera RTSP stream into RTMPS. Running the same command using RTMP works fine without any latency.
Below are the commands used in our testing. ...
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SSD Latency over USB
I've just learned that (internal) SSD latency is in the ballpark of some microseconds (1/1000th a millisecond) and HDD latency is in the range of milliseconds.
I went out and bought a USB-C 3.2 Gen 2 ...
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CL9 dual channel vs CL11 quad channel
I have to upgrade the RAM of an old PC, for the same price I can buy two kits: four 4GB CL11 modules or two 8GB CL9 modules, both at 1600MHz. which of the two options gives the best performance?
The ...
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SATA SSD Latency using ioping
SATA SSDs are expected to have latency in the range of a few hundred microseconds, but when I measure it using ioping, the latency is around 2ms.
Is there any reason for such high latency in SATA SSDs?...
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ffmpeg delay in appearing the image
I am using ffmpeg with 264nvenc to transcode streaming channels. the result is very good the channels look great and are very stable, the problem is that when you open the channel, the sound is heard ...
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Do active USB extensions cables cause delay(game controller)?
How much of an input delay would cause using 2 active 5m USB extension cables with an xbox 360 3m wired controller? Also, any risk of input not going trought?
I'm kinda forced to this kinda of ...
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6sec latency dragging a few images in Explorer, Windows 10
Recently bought a second hand Thinkpad P51, and did a clean install of Windows 10. Compared to Windows 7 on far inferior laptops, Windows 10 and Explorer specially is extremely sluggish. To drag 10 ...
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Does a USB-C ethernet adapter have a higher latency than a regular ethernet port?
Unfortunately, my new gaming laptop does not have a physical ethernet port. Will a USB-C to ethernet adapter produce the same latency(ping) as a physical ethernet port would? Also, how much CPU would ...
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High ping on singapore servers
I have a PTCL fiber connection in my house and in the previous month i have seen that sometimes i used to get 120ms on singapore and sometimes 200ms but now i am getting 300+ ms. following is a ...
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High latency and inconcistency on all (if not most) wireless networks
Some time ago I reinstalled windows 10 on an HP Laptop (14-ac129la) because I installed an SSD. After three or four months after I installed the SSD, the owner started experiencing a constant slowdown ...
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Extreme Citrix Desktop Lag/Latency
My wife and I work identical jobs, remotely from our work-supplied laptops. She experiences extreme lag while in the Citrix desktop environment, and I do not. It is extremely difficult to do her job ...
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Windows 10 - performance issue: randomly occurring latency at basic tasks (opening a window, reacting to keys type or mouse click)
The PC:
HP Envy 15 Latop
Intel(R) Core(TM) i7-4702MQ CPU @ 2.20GHz (bought around year 2015)
upgraded ~2 years ago to SSD HDD & 16 GB RAM
current Windows 10 installed at that moment, automatic ...
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Assistance needed with high latency on a home network compared with office network with two connections from the same ISP?
I’m having trouble with my home network’s high latency and would be glad if someone can shed light on what is causing the issue. Could it be because of my router (Buffalo AirStation Nfiniti running DD-...
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How to specify TCP congestion algorithm to use for my long running rsync process?
I have a huge rsync task where I'd like to syncronize file colletion of my workstation and remote server (rsync over ssh). I assume the whole process to take weeks so I don't want to cripple my ...
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How can I view how much lag / CPU time a Google Chrome extension adds when loading a page?
For example, I would like to know how much lag / CPU time the Google Chrome extension Dark Reader adds when loading the webpage How are pseudorandom and truly random numbers different and why does it ...
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Fixing high latency on a single device on a wired LAN
I have a device on a wired LAN that has really, really high latency on a ping. 599ms and higher. I cycled power to the device and the latency dropped back to <1ms. That lasted for about three days ...
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Why does Windows not need a low latency or real time kernel?
All Linux distros have problems with latency when audio recording, gaming, etc. But the Windows kernel can be used for audio recording, gaming or anything without a delay.
Why does Windows not need a ...
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Adjust Hyper-V Keyboard Latency
I have found that copy/paste from my host machine into a Hyper-V instance is not working consistently. The issue is specific to physical copy/paste buttons on my keyboard as opposed to using a two key ...
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Intermittent latency / lag in games and video conferencing (every 30 [33] seconds)
After using a decent tier laptop (Lenovo Yoga Slim, AMD Ryzen™ 7 4700U CPU, 16 GB LPDDR4x RAM, 512 GB M.2 PCIe NVMe SSD) for a couple of months my wife started to get latency spikes in League of ...
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Streaming HEVC SRT from ffmpeg to ffplay through ethernet, how can I determine latency and cpu usage of each step?
I'm streaming desktop capture from a Windows 10 computer indirect display on two monitors to a Raspberry Pi 4's two hdmi output ports.
Now the RPi 4 is getting maxed out on the cpu when running two ...
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(linux) tool to monitor "quality" of tcp connection?
I am looking for a tool to monitor the quality of a TCP connection. I am trying to describe what I mean:
It should be a tool with a client and a server part. The client sends, say, 1kB of data per ...
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Does upgrading RAM with different Speed, affect the pc or affect all the RAM?
I have 4gb RAM in my system. I went to shop for upgrade. They told he has different number like "2666" but in my system RAM its number is different. So we need to wait to get exact number ...
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What might be causing periodic audio pops and crackles in certain Windows 10 applications?
I have an Intel NUC10i7FNH computer, purchased in December 2019 and running Windows 10. Within the last year, it has started to produce audio crackles and pops during many different types of audio ...
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Using ffmpeg to send video-stream to IP on local network with UDP
I have a project going on where I want to end up having one host computer (H) able to do a lot of heavy duty tasks, and one client computer (C) sending inputs to H and receiving a video-stream of what'...
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High latency when browsing web but dramatically reduces when using VPN
I generally have high latency when browsing web from my home internet connection. The connection itself is reasonably fast and I normally get ~120 Mbps of download speed, but the latency is often in ...
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Does Checksum Offloading affect latency in a good way? Does it vary depending on cpu power?
I'm trying to get an understanding of the settings that you see when you go to the advanced options of a typical intel or realtek networking card in your windows device manager. A lot of those are ...
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How to diagnose Windows 10 latency despite hardware capacity
How can I hunt down a bottleneck in Windows 10 when no hardware resources are overtaxed? I have a Windows 10 Pro workstation with pretty extreme hardware (24 physical cores, half terabyte of RAM), yet ...
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Latency of SSDs versus HDDs
We are currently using an HDD for our NetApp storage for our VMs. We're considering replacing them with SSDs, but many disk manufacturers have different performance. What range of latencies can we ...
