Questions tagged [performance]
The performance tag has no usage guidance.
24 questions
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Is there something to consider before starting a Tor non-exit Relay at home (100mbit)?
I recently increased my link to 1:1 100Mbit/s (down/up) at home. It is an unmetered connection IPv4 only.
I have set up a bridge this morning. But I know little of bridges... I do not know if it could ...
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Is there a way to make Tor more performant and reliable, if necessary at the cost of sacrificing some privacy?
I have an enterprise use case, where we need to ping a lot of different onion nodes at once, as fast and as reliably as possible.
I have some ideas related to forcing a specific circuit made only of ...
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Traffic monitoring of specific hidden services
I offer onion hosting to the general public and I am having some issues with many hidden services when they share an instance of Tor with a very busy service. When there is a very busy hidden service ...
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TLS Session Resumption - Enabled or not?
I am trying to figure out if TOR is implementing session resumption or not. Last open discussion I found was this one: https://gitlab.torproject.org/legacy/trac/-/issues/17252 which seems to say that ...
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High CPU usage on some sites
On some sites, the CPU usage goes to 100% (one core) and it freezes any activity inside the browser. For example I can move the window, but not click the tabs or in the page, and if I do, the actions ...
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Why is my tor relay taking so much CPU power?
My tor relay uses ~50 Mbytes/s (25 MBytes/s read and 25 MBytes/s write). I would expect that each byte has to be decrypted and encrypted once. So I would expect my tor relay decrypts ~25 MBytes/s and ...
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Why is Tor button for Chrome so much faster than the official Tor browser?
I use regular Chrome, Chrome Canary with Tor button (connected to tor from MacPorts) and Tor browser on the same computer. Obviously regular Chrome is the fastest but Canary/Tor button is just ...
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What about Tor light?
Recently unscrupulous marketers in the U.S. were allowed to collect data from all their customers and resell that data. That's why I'm using Tor for pretty much everything I do.
However, I only need ...
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Looking for Conflux code
I'm looking for source code of Conflux tool, published here.
There's statement: 'We implemented the multipath construction and cell sequencing,
buffering, and reordering in the Tor source code (...
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Are AES-NI crypto instructions used by my Tor (relay) server?
I have a server with Linux Debian 8.4, running a relay.
I read that AES-NI could improve the performance of my relay. Or at least, less stress the CPU by crypto operations.
Proof of AES-NI detected ...
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Tor browser will not open - tried everything I know
My Tor browser just randomly stopped launching. I'm running Windows 10. I have tried to delete everything tor related and re-download multiple times, messed with the firewall settings, etc. The ...
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What is the most appropriate kind of hardware to run a Tor relay on?
In the purpose of setting up a Tor relay that makes good use of a fast FTTH connection, what computer will do the job most efficiently at the time of writing, provided the following requirements are ...
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Performance capacity of Tor network to handle large amount of users watching Netflix
I understand that there may not be an explicit answer to this question, so I am just asking about the likelihood.
Take for example the Anonabox Kickstarter project from last year. This project ...
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Tor 0.2.7.6 uses 100% of CPU all the time!
I just updated my Tor with tor-0.2.7.6.tar.gz, but when I run tor, it uses 100% of one of my CPU's cores, even if I run something simple like tor --version. What is going on?
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Performance issues in single guard for hidden services
From what I can read in this recent post in the Tor blog, Hidden Services use one single guard, just as regular clients do. How does this affect the performance of hidden services? I know that since ...
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Can Tor make your browsing faster?
Especially using OrBot on the phone Tor sometimes feels faster. Since I am not sure on how to really measure this I have been thinking about what the reason for this could be.
I have the following ...
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Does all direct clients have to talk to Directory Authorities to fetch the consensus at the first step?
I just read a description on Tor Metrics stating that: "These estimates are derived from the number of directory requests counted on directory authorities and mirrors".
So my question is already ...
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What cached information can be reused when doing two subsequent connections to a Hidden Service?
From my understanding, when I first open a connection to a Hidden Service, what happend is the following:
local Tor client gets the descriptor of the Hidden Service form the
HS Directory Server
local ...
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2k
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Which eCommerce CMS will work in Tor?
Which eCommerce CMS will work in Tor? I tried many CMS like OpenCart, Magento and Wordpress etc, but none of these open correctly in Tor browser, I mean only HTML markup loads up, but no images, ...
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Does Tor affect ping for online games?
Does Tor affect ping for online games? The servers to which I usually connect are in Europe. Is there a way around?
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Tor benchmark resources
Are there any freely available resources for, or papers regarding Tor benchmarks?
I am specifically looking for things such as average number of circuit creation operations that a single onion-router ...
user194
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Does increasing the number of introduction points for a hidden service help with its scalability?
Would increasing the number of introduction points help distribute the load among more relays? Would it have any security implications?
There doesn't seem to be a limit on the number of introduction ...
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Has the Tor project considered using NTRU?
The Tor Project is switching to ECC, a set of algorithms promoted by the NSA. People like Bruce Schneier have mentioned concerns about both NSA's promotion of this algorithm, as well as the chosen ...
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How to determine if reported level of TLS overhead indicates a problem?
Tor periodically logs a diagnostic message with the percentage of TLS write overhead. How can one determine if the percentage reported is indicative of a problem with the associated tor relay?
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