Questions tagged [speed]

Questions about optimizing your computer to take up less boot time, application launch time, download time, etc.

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Network interface still negotiates 10 Mbps link when computer is down

I have a PC (Windows 10) that, when powered off, still negotiates a link with the switch at 10 Mbps. As soon as the host is up, the speed is renegotiated at 1000 Mbps. I was wondering what this was ...
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My download speed is throttled to 90Mbps both on WiFi and LAN

I have a 400Mbps connection, yet my computer only achieves around 90Mbps on various online speed measuring sites. While this could be attributed to the fact, that the house itself were connected to ...
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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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Can I buy slower Ram if I plan to use four bars with the 7950X

I plan to get the Ryzen 7950x. The supported ram section states: Max Memory Speed 2x1R DDR5-5200 2x2R DDR5-5200 4x1R DDR5-3600 4x2R DDR5-3600 If I plan to use 4 slots, does it mean I get can the ...
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Mobile Sim Internet Speed

Hi I want to ask someone here about network speed test. I am from Thailand. I got a gift data package of 12 GB at 100mbps from my mobile sim operator. When I make a network speed test, it says the max ...
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How to measure USB port real-world speed? and not USB device speed

Using Kubuntu 22.04.1 At back of desktop computer there are two blue USB ports with Type-A connectors. Theoretical speed command 1: lsusb -t Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, ...
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Extremely slow connection to a VPS

I use a (dedicated) VPS to host a Wireguard VPN server. Everything works, but I noticed that my connection caps at around 2.5MB/s. When using wget on the server itself the transfer around 85 MB/s. My ...
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Why is Chrome 10 times faster at uploading files to Google Drive than Firefox?

I've noticed than Chrome is around 10 times faster at uploading files to Google Drive than Firefox. What could explain that? I use Windows 10.
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Measure the download speed of a specific public server of your own choice, not the speed of your ISP

How can a common computer user ("Your Momma") measure the average download speed of any (random) specific public server of your own choice (e.g. "https://superuser.com" :) ), ...
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After I upgraded to DDR4-3200 32 GB on a MAG X570 MSI, I'm getting a double beep... but everything works fine

This is a strange situation for me. I'm building a machine for my wife, and since it uses a compatible motherboard (identical except MPG instead of MAG), I'm also passing my old DDR4-2400 to her and ...
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iperf3 speeds not symmetric on multiple adapters in Windows 10?

I ran iperf3 between two Windows machines and noticed that the speeds were not symmetric. I tested using both the built-in 1-gigbait Ethernet adapters in each machine as well as with 10-gigabit ...
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One computer has much lower internet speed than other devices

A few days ago I had new internet connection installed – 100 Mb/s and my phone, my iPad and one laptop show on speedest.net around 90 Mb/s, which is great. Only one laptop shows around 15 Mb/s, ...
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Inconsistent copy speed on LAN (Windows10->Synology)

I have a pretty underutilized Ethernet LAN at home -- basically I am usually the only one using it, everybody else is doing WiFi. A strange thing that I have noticed is that I have inconsistent large ...
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Wi-Fi speed is substantially less than my router speed

I recently had my speed increased to 250Mbps by my ISP. When I checked it with a number of speed checkers using an Ethernet cable it was indeed correct. However when I tried it on Wi-Fi sitting next ...
1 vote
1 answer
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2 x 8gb RAM with 2 x 16 GB ram

The computer came with 2 x 8GB. That works well like that. I Recently upgraded my PC: I replaced the RAM, so now, I have 2 x 16GB ram on the motherboard (Asus ROG Strix B550-E) spaced apart from ...
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Is it possible to have Firefox use more than 1 CPU core in Windows?

According to the Microsoft Windows Task Manager, Firefox tends to just use 1 CPU core for most of its processing. When a system isn't running any foreground tasks besides Firefox, this leaves much ...
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Is there a way to Manually Control Fan Speed for my HP Pavilion Gaming 15 ec2xxx?

I've a HP Pavilion Gaming 15 ec2xxx with an AMD Ryzen 5600H and a GTX 1650 GDDR6. I'd like to manually control my fan speed but I can't find anything working. I tried with Notebookfancontroller but ...
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Samsung SSD 980 PRO capping out at 510MB/s

I have a Samsung SSD 980 PRO (PCIe 4.0 NVMe M.2) which caps out at ~ 510 MB/s write speed (see test details below) which leads me to the conclusion that it is not attached via the NVMe interface but ...
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Why is transferring a file over LAN so slow?

I have two Windows 10 machines. Both are connected via cable to a hub. The switches are connected by cable and one hub is connected with the router for internet via cable (so no WiFi involved). The ...
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Is my connection speed okay?

I have a so-called ADSL2+ connection with this characteristics displaying in my zyxel modem page: noise margin downstream: 9.6 dB output power upstream: 12.2 dbm attenuation downstream: 34.2 dB Upon ...
2 votes
1 answer
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Ethernet connection speed is still the same after a change in speed and duplex option to 1Gbps full duplex

I discovered that the Ethernet speed is only 100Mbps when I checked on “Open Network & Internet Settings > Ethernet > Change adapter options > Double-clicking the Network Connection” I'm ...
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same ffmpeg preset got way slower in X265 compared to a year ago - why?

If I compare several ffmpeg versions, the speed got down by 50% even with the same encoding profile "medium" so I wonder what the change was. That change happend any time in summer 2021. I ...
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What determines the "speed" of current-tech motherboards? [2021]

Back a decade or so, I built my PC while in Uni and the basic limiting factor for a motherboard's internal communication was the Front Side Bus speed. Too low a frequency (i.e. data transfer rate) in ...
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NVMe SSD speed almost doubles in safe mode than in normal Windows

NVMe SSD speed almost doubles in safe mode than in normal Windows. Safe mode: Normal mode: This is the SSD: Kingston’s A2000 NVMe PCIe SSD. Windows is not installed on this drive. Firmware is up to ...
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HDD running at extremely low cache speed

Since a few weeks ago my HDD has been extremely slow when reading and writing data from it. I have an internal SSD that runs the main Fedora 34 root system and home, a 500GB internal HDD that has ...
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Run a RAM speed test

Is there any way to test the actual speed of the RAM to know how many gigabytes per second it transfers data? I'm on a Windows machine, so solutions based on that would be nice, but if there is ...
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Why my ASUS BIOS detects and runs Kingston DDR4 3200MHz memory as 2400MHz?

In my new computer there are 2x8Gb Kingston Fury DDR 4 (Kingston kf432c16bb1k2/16) modules. Still ASUS Prime Z590-A with Intel i5 11600-K detects it as 2400MHz. Modules installed according ASUS ...
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Why does a WD HDD have 12 mb/s random write speed, 24 times as fast as its random read speed?

I used CrystalDiskMark to test an HDD whose model name is WDC WD40NDZW-11A8JS1 4000,7 GB. To my surprise, it's random write speed is whooping 12 mb/s, 24 times as fast as its random read speed. Not ...
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My mac and my PC don't show the same download speed

I recently installed fiber optics in my home and when I did some tests with nperf I noticed that while connected to the same wifi and placed next to each other, my Mac and my PC didn't have the same ...
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How to fix playback issues in VLC with a MKV file after slowing it down with ffmpeg

I ripped some extras from a DVD that are basically image galleries to MKV. They play way too fast, so I slowed them down using ffmpeg like this: ffmpeg -i input.mkv -filter:v "setpts=64*PTS"...
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How can I configure TeraCopy 3 so that it copies small (< 10 KB) files faster?

TeraCopy 3.6 copies small (< 10 KB) files very slowly (10 files ~= 3 secs): I didn't have this issue with TeraCopy 2. How can I configure TeraCopy 3 so that it copies small (< 10 KB) files ...
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have a speed issue with two websites [closed]

Two websites I manage https://www.wisepelican.com/ and https://www.kay-grant.com/ Are having speed issues. Wise pelican is a wordpress site that utilizes Divi builder and Kay-Grant Group is built on ...
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My scale factor is affecting my speed on Windows 10

So, whenever I adjust my scale factor, 200% for example. It'll get slower. If it was set to 100%, then it runs perfectly smooth. Im confused as to why this happens. As of writing I'm using VirtualBox ...
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Why is my external hard drive transferring so slowly on USB 3.0?

I have approximately 1.5 TB of data which I need to back-up on an external hard drive. I am using a brand new 2 TB Seagate OneTouch HDD portable storage device with a USB 3.0 cable. Currently, the ...
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I bought a fast, refurbished laptop, but some Windows features are super slow

I've asked Reddit and Quora, but with to prevail. I thought I'd I consult here before I try and talk to Windows tech support or just send it back. Anyways, here's the situation: I recently bought a ...
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How can I decrease the V8 processing time when using ffmpeg?

I am working on a project where a lot of videos need to be converted quickly in a fairly good quality. I decided to use ffmpeg and V8 encoding because of the licensing of the codec. h.264 isn't an ...
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Very low random IOPS reported on SSDs

I have two Samsung SSDs in my computer, an 840 Pro and 860 Evo, reporting very low random IOPS numbers, about 1/5 of the nominal, connected via a SATA3 interface, using an i7-3770K CPU in a P8Z77-V ...
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WAN is faster than WLAN even though it's an additional step

Yep, the title is right. My WLAN connections are unbearably slow, I'm talking 10 kbps. I have done many tests and tried to find the problem, including trying this on different computers and changing ...
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Upload speed capped at 100 Mbps only in LAN

I have a 500 Mbps Internet plan in Kazakhstan. In the wired connection, I have full 500 Mbps duplex to local (the same city) Speedtest servers: However, testing to servers located outside of my ...
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Download speed is super slow after reinstalling Windows 10

Speeds I used to get before were somewhere around 1,5MB/s. My top speed now is 20KB/s (I tried downloading with multiple browsers). Download speed in various applications has no problem with reaching ...
11 votes
10 answers
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Does an extra old internal hard disk drive affect my new PC system’s performance?

I've just recently bought a new PC with a high-speed SSD and a hard disk drive. I do care much about its performance and don't intend to slow it down by any means. I have an old 2 TB Green Western ...
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Internet speed poor in Normal Mode, good in Safe Mode

I am experiencing poor internet speed in Normal Mode and good internet speed in Safe Mode. Others have reported this as well, but in my case internet speed remains good when rebooting into Normal Mode ...
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Internet Speed Tests

I've recently had fibre broadband (FTTP) installed (900mbps/100mbps). One thing I've noticed which doesn't seem to make much sense is the results of speed tests. As above my connection is now 900mbps ...
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How does one test the LAN speed without a server?

When I need to test the intranet speed I typically use iperf3 at both ends (server and client) to check the flow rate between them. However recently when I tried some apps in the Play Store I noticed ...
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Why is my WiFi slow when I send a video using broadcast UDP packets on a different network (albeit sharing the same NIC)?

I have a setup where I send UDP broadcast packet for a video app. I run a VPS on my server and send UDP packets to a Jetson computer. The two are on the 10.0.2.x network. They both use my second ...
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Optimizing the running speed of a large table with many formulae

I have to make an Excel-based calculator for other users. This works really simply, it just has to tell does a cell include certain letters or not. The calculator is basically a large table (...
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OpenSSL 1.1.1f measure the speed of SHA3 series

In my Ubuntu OpenSSL 1.1.1f 31 Mar 2020 is installed. I can measure the SHA256 speed by $ openssl speed sha256 Help list the following as message digest commands Message Digest commands (see the `...
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Why does upload speed get slower the farther I am from the destination server while download speed remains mostly constant?

I recently upgraded from 250/40 cable internet to Gigabit down/up fiber internet and have an interesting finding I found recently. When I'm exchanging traffic from my computer to other remote servers (...
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Significantly lower download speeds than peers while torrenting

As you can see in the picture attached the average download speed I'm getting while downloading a torrent is 1 MB/s while my maximum limit from my ISP is 6.5 MB/s. One of the peers as you can see (...
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Why is my download speed higher than my bandwidth?

iperf3 reports my bandwidth between my laptop and router (openWRT) over WiFi to be 24.2 Mbits/sec. But when I run speedtest on my laptop I get download speed at 49.58 Mbps and upload 35.61 Mbps which ...
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