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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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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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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Latency measurements and PTP

I have a setup with 3 PC's where PC 1 sends data to PC 3 trough PC 2 (all connected trough switch). Im measuring latency for some data packets using Wireshark and to keep all pcs system time in sync ...
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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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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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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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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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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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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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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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Avoid mistaken "double-click" non-response when clicking a Windows taskbar tab and immediately clicking it again to send to background?

When I click a taskbar tab to highlight that program's window, sometimes I only want a quick peek, and so I quickly click it again to send it to the background. Unfortunately, Windows treats this as a ...
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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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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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Why is a request via my reverse proxy faster than a direct connection?

I have an ESP8266/ NodeMCU connected to my wifi which I used to make my fan a smart home device. It has a very simple HTTP server running, which allows me to send GET and POST request to get or change ...
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Issue with Computer Clock (or perhaps LAN)?

I am experiencing a very strange behavior for which I struggle to identify the source, but assume it's the computer clock. Here is the setup and synopsis: I have two computers on my home network ...
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Audio freeze, buzzing crashes Windows 10 with Blue Screen Of Death

Lately, I have been experiencing multiple blue screens of deaths, game freezes, audio buzzing, complete blackouts of the screen. I have updated to the latest GPU drivers, audio drivers, latest BIOS ...
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High variance of SSH connect latency

I am trying to SSH to a remote server. Sometimes I connect quickly in under a second. Other times, it takes much longer - between 7 and 25 seconds. I tried running with ssh -v for debugging. When it ...
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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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At random times, random internet connections lag out indefinitely

I have had this problem for 4 years and it has persisted through two households, two computers and two ISP's. The only constant thing has been my router which is why I have a hunch that it's the ...
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If you run fast RAM at a slower clock speed, will the latency timings improve?

I am buying a motherboard and CPU that support DDR4 2400 memory. For approximately the same cost, I can buy either of the following two types of memory: DDR4 2400 memory with timings of 16-16-16-39. ...
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System interrupts/DPC/ISR appear to be causing sound distortion in Windows 10. How can I determine the root cause?

I am having problems with audio distortion in Windows 10, but it varies in severity between apps. Foobar2000 is very heavily distorted on most tracks, with buzzes and skips. Windows Media Player also ...
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Reducing Wi-Fi Latency

I've got a good wi-fi connection with only 4ms ping time to my router: PS C:\Users\bobuhito> ping 10.0.0.1 Pinging 10.0.0.1 with 32 bytes of data: Reply from 10.0.0.1: bytes=32 time=4ms TTL=64 ...
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Can you purposely delay the sound inside the Windows OS backwards?

I got a pair of google max speakers which are hooked up via a 3.5 mm jack but they stream the audio input to each other and split it into a right and left channel which introduces a delay of 1 to 1.5 ...
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looking to improve qaulity for video output

For the last 5 years I have been streaming a live stream 24/7 from a streaming studio which requires low latency rtmp output to a web based player client. I am using vMix to capture my sdi signal from ...
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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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Ping too low between Europe and US [duplicate]

I'm pinging (from Europe) an IP belonging to Firebase's CDN via this command: ping 151.101.65.195 I get the following result: PING 151.101.65.195 (151.101.65.195) 56(84) bytes of data. 64 bytes from ...
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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 ping latency when playing online games

I switched to a WISP (fixed wireless) internet provider to improve internet speeds. I now have up to 30 MBPS. When playing multiplayer online games ping latency shoots up to 500+ ms. Why does the ...
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High network latency caused by windows server 2012 R2 computer

Okay, so, this is a weird one. Recently I noticed I’ve been getting extremely high latency (ping) reads, especially when gaming but seemingly in random times, with pings exceeding 2000ms and even ...
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Network speed horribly slow only between two specific nodes

I have a VPN in which (mainly two) clients communicate with each other. I realized that the throughput between two of the clients is extremely low ((2) -> (1) in the picture below) in one direction ...
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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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Would a very long HDMI cable and very long USB extension cable affect latency and/or quality?

I am about to do my first PC build, and it's got some really great specs. My computer is upstairs, but I have a 4K TV downstairs and I'd like to game on this computer through that to really get the ...
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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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Bluetooth mouse latency on linux

I bought a logitech MX anywhere 2S, and I'm using it on Debian 9. when I started using it got a hight latency. I resolved the problem using the following command: su echo 0 > /sys/kernel/debug/...
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Will a PC4-21300 module be compatible with a PC4-19200 module?

I have two PC4-19200 modules (4Gb each) in my laptop. Both modules are by Hynix (HMA851S6AFR6N-UH) and have a CAS latency of 17. I want to buy a single Kingston module (KVR26S19D8/16, PC4-21300) but ...
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Latency due to a high GPU usage or throttling is possible?

I'm currently using a Ryzen 3700X and an Vega 64. My problem is related to audio and videos, which suttles and freezes. I downloaded the LatencyMon, and they say that "Your system appears to be ...
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Mikrotik Hotspot Performance Degradation: So Slow Hotspot Unusable

FAULT: Hotspot created with Mikrotik's "ip > Hotspot" wizard is so painfully slow that it is unusable Googling "mikrotik hotspot slow" returned a gazillion results, none of which resolved this fault....
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Interleaving, and its effect on VDSL2 latency

(Re-posting from Network Engineering SE, turns out this was actually off-topic there.) Having moved to a new house I hired with an ISP a broadband internet plan. The technician told me I live really ...
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Insanely high latency when full bandwidth is in use

When I use the full bandwidth my ISP is providing, I get insanely high latency in every website, more than 1000ms. I did a test on 3 of my friends' internet connection, including mine. I took a ...
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Investigating ping latency

Usually in a LAN I get smth like : Reply from 192.168.1.1: bytes=32 time<1ms TTL=64 with the occasional 10ms. But today on a friend's home I found 32ms consistently when pinging the router. The ...
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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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Monitor performance/latency while copying file across Point 2 point circuit

This is my first post here, i did do a quick search couldn't find exactly what i was looking for. I am copying a file from one server located in NW part of the country to another server located in ...
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Is memory latency still a key factor in computer speed?

A search on the real-world benefit of low latency RAM seems to yield very old testing done on equally old hardware. Is CAS latency essentially irrelevant now against other performance characteristics ...
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How to avoid Jitter on a LAN network?

I recently acquired fiber connection at home, but I faced an issue, every 10 minutes, the connection kinda stop and then restart. Which cause websites or any software that require internet connection ...
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Where does internet latency comes from?

Sorry if this was asked before. Couldn't find anything about it on SE. So the distance from San Francisco to Australia is about 8,000 km. This source indicates that the latency among the two ...

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