- Os x yosemite virtualbox amd say i have a single core cpu pro#
- Os x yosemite virtualbox amd say i have a single core cpu download#
The same is true of course for applications, that have more then one thread. an old HT Pentium, you will be able to reap the benefits. If you run a single application with one thread, you will not be able to reap this benefit, but if you run two high load applications on e.g. This mechanism will create a 10%-30% potential improvement in instructions/seconds or CPU performance. It will decide to use the other thread as the instruction of the current thread is not available in the cache and need to be fetched from e.g. The CPU core itself now decides which thread (instruction pointer) to use. the registers and instruction pointers of a CPU core. See the number of logical cores as the number parallel threads/processes that can be executed by the HW.
The amount of bullshit produced elsewhere about the subject matter is unbelievable. Will be back in a few days with results.Īs an OS designer I completely agree with the result of the measurements. Wonderful 50% performance increase with Hyper-Threading enabled, but only with the AES sadly, I will have to run some more comprehensive test. ⟶ speed 7.2 GiB/s (higher speed is better) VeraCrypt AES encryption with 8 cores ( Hyper-Threading warning issued) ⟶ speed 4.8 GiB/s (higher speed is better) Results VeraCrypt AES encryption with 4 cores
Os x yosemite virtualbox amd say i have a single core cpu download#
VirtualBox: Version 6.1.0 r135406 (Qt5.9.5)īenchmark Tool: VeraCrypt version 1.24 Hotfix1 64-bit final ( web page, direct deb download link) Processor: Intel® Core™ i7-7700HQ 6 MB Cache, up to 3.80 GHz, 4 physical cores, or 8 using Hyper-Threading, CPU Benchmark comparison Host + Guest: Linux Mint 19.2 "Tina" - Cinnamon (64-bit) both with kernel: 5.3.0-24-generic. One thing for sure: Don't take me for the word and test it under your own conditions, before you decide to apply this setting permanently. Having shared with you these pretty remarkable results, I am certain for you to agree with me, that this warning probably should not be taken so seriously on modern CPUs featuring Hyper-Threading with the latest VirtualBox version.
From my standpoint, the warning mentioned in the question may apply to some conditions, but certainly not all of them. I see no reason to believe, that their results are inaccurate, as I followed a rather rigorous preparation and method, moreover these tests have taken place in RAM to rule out I/O bottleneck. But I figure, if these two, one of which is rather complex compression test, the second being a set of rather complex encryption tests, what would be the point.īoth of the benchmarks show a marked difference.
VeraCrypt with 8 cores enabled, HW-accelerated AES (AES-NI) speed 3.9 GiB/s. VeraCrypt with 4 cores enabled, HW-accelerated AES (AES-NI) speed 2.6 GiB/s.Ĩ cores => speed 3.9 GiB/s ( higher speed is better) WinRAR with 8 cores enabled, 1.5GiB processed in 4.5 minutes.Ĥ cores => speed 2.6 GiB/s ( higher speed is better) WinRAR with 4 cores enabled, 1.5GiB processed in 7.5 minutes.Ĩ cores => 4.5 minutes ( shorter time is better) The benefit being almost none.Ĥ cores => 7.5 minutes ( shorter time is better) To include potential caching inside or outside the system, I ran the same test twice consequently.The virtual machine ran in foreground, without any other CPU time hungry application running, I have disabled what I could for the purpose of the test not being influenced.I have done the same Preparation as pointed out earlier.I have, for the second pass, since the reboot disabled Antivirus pointed out at the bottom of this answer and updated WinRAR in both cases from a Beta to the Final version.Cloning the original virtual machine to have two identical ones.
In both cases I waited after boot until the CPU, RAM, disk drive are at stable near zero-point hits. Guest Additions: Installed and up-to-dateīenchmark Tool #1: WinRAR version 5.40 final 64-bitīenchmark Tool #2: VeraCrypt version 1.19 final 64-bit Processor: Intel Core i7-4700HQ, (6MB cache, 4 physical cores, or 8 using Hyper-Threading), CPU Benchmark
Os x yosemite virtualbox amd say i have a single core cpu pro#
Guest: Windows 8.1 Pro 64-bit (fully updated) Host: Linux Mint 18 Cinnamon 64-bit (fully updated) Kernel version 4.4.0-47-generic
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