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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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Why do I get a high ping when I plug in a second network cable?

My setup is the following: Raspberry Pi acting as a router with pppoe and dnsmasq. eth0 = wan, eth1 = lan. Everything works fine as long as I don't plugin the cable for eth1 or remove the interface ...
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1answer
25 views

Regarding Two Devices creating latency on a single switch

I have scripts that run on bootup on two NAS's (let's say they're QNAPs) to create bonds and have different ips for different vlans. ie- NAS 1 (all NICs bonded to 1 via TLB) set bond0 -> 0.0.0.0 or ...
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11 views

IPoIB with Netem (Latency emulation) Poor performance

I have to emulate a wide area network. My setup contains two servers with MT27500 Family [ConnectX-3] Infiniband cards. Default latency between both nodes is ~0.4ms and iperf test shows throughput of ...
0
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1answer
66 views

If you live far away from popular DNS servers, is it still recommended to use them? [closed]

My friend suggested that I should use one of popular DNS servers like Google. Since there are no nearby DNS servers from where I live, I thought I would do a DNS benchmark and to my surprise, ...
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0answers
147 views

Windows 10 - High DPC Latency And ISR Causes Audio Drop Outs And Lag

I've been facing audio stuttering, drop outs and performance lag on my Windows 10 laptop. The lag is sometimes so bad the Windows almost freezes. It lasts for around 5 - 10 seconds and then goes away ...
2
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1answer
71 views

Which RAM should I prefer (CL vs PC)? [closed]

I'm thinking to buy new RAM (for Lenovo 320 15AST, motherboard is LNVNB161216). I had 4GB, I need 8GB. My current RAM is m471a5143sb1 2133Mhz, CAS (CL) 17, PC19200. I was looking at two with such ...
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0answers
97 views

High ping with Ubuntu 17.10 host

When pinging the computers in my WLAN all hosts (router, raspi, Debian Stretch desktop, ...) have low latencies of a few ms, except for one: my Ubuntu 17.10 desktop has latencies of 50 to several 100 ...
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0answers
324 views

TP-Link powerline adapter causing extreme latency on primary network? Wired devices on Fios router, not connected to powerline adapter, are affected

To preface, I am not a networking guy but work in IT. I'm going to bullet point the situation so it's easier to digest. Here is a little diagram I created in paint to give a visual aid. I pay for ...
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0answers
45 views

Zero latency to 8.8.8.8

Tp-link wifi routers have built in system tools like ping and Traceroute. Please see the outputs of ping and Traceroute commands from my Tp-link router. How can this be ? This happens only with 8.8.8....
0
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1answer
110 views

Ping to same address gives me different IP´s

When on windows 10 in cmd.exe a ping is made to cryptopia.co.nz, I get one of the following results: Pinging cryptopia.co.nz [45.60.13.241] with 32 bytes of data: Reply from 45.60.13.241: bytes=32 ...
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Fluctuating WiFi latency

I am trying to troubleshoot my unreliable WiFi, but I am lost. My wired connections work flawlessly, but my WiFi has massively fluctuating latencies. This occasionally knocks out my Chromecast. Here ...
0
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3answers
983 views

How Do USB 3.0 Hubs And USB Extension Cables Effect Latency, If At All?

I currently have three peripherals (mouse, keyboard, Wacom tablet) all wired to an individual USB port on my computer. They also each have their own 6ft USB extension cable (passive) because the ...
0
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0answers
659 views

High Latency acpi.sys & Wdf01000.sys

I updated drivers, BIOS, uninstalled all programs and did a new installation of win10 but still high latency. Processes "system" and "interrupt" are never @ 0.00% Please help me.
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0answers
25 views

Could the latency (ping) lie?

I'm playing Rainbow Six Siege and I have a decent ping around 50 to the European servers... My friend in the middle-east have one around 130 but he can spot enemies 3 seconds before I do; via my own ...
0
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1answer
588 views

My WIFI connection has high ping periodically

My friends don't have this problem. I tried to change the router but it didn't work. My laptop is Predator 15 with Killer Wireless n/a/ac 1535 Wireless Network Adapter. Here is the screenshot when ...

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