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Does WSL2 run Linux in a virtual machine or alongside the Windows kernel?
Realtime kernel running as virtual machineDoesn't detect usb modem after kernel updateVirtualbox , Ubuntu 11.10 , linux-kernel 3: cannot start virtual machineLinux and windows kernelMove Ubuntu Server Virtual Machine from Linux to WindowsIs the Linux kernel required to run Linux?Anyway to get full bash working on Windows?error when starting windows 10 virtual machineRunning Ubuntu in the new Windows 10 using WSL Windows System for Linux (not hyper-V)Linux kernel development in WSL
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I've always wanted a Linux terminal in Windows and was fulfilled by WSL 1. But it was painfully slow as it was (I guess) a Hyper-V-managed virtual machine. With WSL 2, it's way faster relatively but I cannot understand how Microsoft made it so.
Did they improve Hyper-V or did they stop using a virtual machine and create some magic to run the Linux kernel in parallel?
kernel windows windows-subsystem-for-linux
edited Aug 5 at 12:25
Boann
1133 bronze badges
asked Aug 4 at 6:39
Sachin.VermaSachin.Verma
736 bronze badges
|
show 3 more comments
I've always wanted a Linux terminal in Windows and was fulfilled by WSL 1. But it was painfully slow as it was (I guess) a Hyper-V-managed virtual machine. With WSL 2, it's way faster relatively but I cannot understand how Microsoft made it so.
Did they improve Hyper-V or did they stop using a virtual machine and create some magic to run the Linux kernel in parallel?
kernel windows windows-subsystem-for-linux
edited Aug 5 at 12:25
Boann
1133 bronze badges
asked Aug 4 at 6:39
Sachin.VermaSachin.Verma
736 bronze badges
3
It's still virtual, but WSL2 uses a linux (4.9) kernel instead of changing the calls to windows APIs and handling it that way.
– guiverc
Aug 4 at 7:14
9
@Sachin WSL 1 runs ELF binaries on Windows by translating Linux system calls to Windows system calls, which makes it exactly what its name describes, "Windows Subsystem for Linux"
– wjandrea
Aug 4 at 14:56
6
WSL 1 was not virtual @guiverc
– Adrian
Aug 4 at 16:34
3
@Sachin.Verma: What do you mean by "hoax"? WSL 1 was an implementation of the Linux kernel API and ABI, just like the Linux kernel is an implementation of the Linux kernel API and ABI. In fact, that is how most Linux compatibility layers work, e.g. the ones on FreeBSD, HP-UX, AIX, Solaris, etc. are also mostly independent re-implementations of the Linux kernel ABI and API instead of ports of the Linux kernel. It also works the other way around: all the compatibility layers for commercial Unices on Linux were independent re-implementations of their APIs and ABIs.
– Jörg W Mittag
Aug 4 at 17:44
4
WinE also works the same way. It implements the Windows API and ABI, instead of porting Windows to run on Linux (which wouldn't be legally possible).
– Jörg W Mittag
Aug 4 at 17:45
|
show 3 more comments
I've always wanted a Linux terminal in Windows and was fulfilled by WSL 1. But it was painfully slow as it was (I guess) a Hyper-V-managed virtual machine. With WSL 2, it's way faster relatively but I cannot understand how Microsoft made it so.
Did they improve Hyper-V or did they stop using a virtual machine and create some magic to run the Linux kernel in parallel?
kernel windows windows-subsystem-for-linux
edited Aug 5 at 12:25
Boann
1133 bronze badges
asked Aug 4 at 6:39
Sachin.VermaSachin.Verma
736 bronze badges
I've always wanted a Linux terminal in Windows and was fulfilled by WSL 1. But it was painfully slow as it was (I guess) a Hyper-V-managed virtual machine. With WSL 2, it's way faster relatively but I cannot understand how Microsoft made it so.
Did they improve Hyper-V or did they stop using a virtual machine and create some magic to run the Linux kernel in parallel?
kernel windows windows-subsystem-for-linux
kernel windows windows-subsystem-for-linux
edited Aug 5 at 12:25
Boann
1133 bronze badges
asked Aug 4 at 6:39
Sachin.VermaSachin.Verma
736 bronze badges
edited Aug 5 at 12:25
Boann
1133 bronze badges
asked Aug 4 at 6:39
Sachin.VermaSachin.Verma
736 bronze badges
edited Aug 5 at 12:25
Boann
1133 bronze badges
edited Aug 5 at 12:25
Boann
1133 bronze badges
edited Aug 5 at 12:25
Boann
1133 bronze badges
1133 bronze badges
asked Aug 4 at 6:39
Sachin.VermaSachin.Verma
736 bronze badges
asked Aug 4 at 6:39
Sachin.VermaSachin.Verma
736 bronze badges
asked Aug 4 at 6:39
Sachin.VermaSachin.Verma
736 bronze badges
736 bronze badges
3
It's still virtual, but WSL2 uses a linux (4.9) kernel instead of changing the calls to windows APIs and handling it that way.
– guiverc
Aug 4 at 7:14
9
@Sachin WSL 1 runs ELF binaries on Windows by translating Linux system calls to Windows system calls, which makes it exactly what its name describes, "Windows Subsystem for Linux"
– wjandrea
Aug 4 at 14:56
6
WSL 1 was not virtual @guiverc
– Adrian
Aug 4 at 16:34
3
@Sachin.Verma: What do you mean by "hoax"? WSL 1 was an implementation of the Linux kernel API and ABI, just like the Linux kernel is an implementation of the Linux kernel API and ABI. In fact, that is how most Linux compatibility layers work, e.g. the ones on FreeBSD, HP-UX, AIX, Solaris, etc. are also mostly independent re-implementations of the Linux kernel ABI and API instead of ports of the Linux kernel. It also works the other way around: all the compatibility layers for commercial Unices on Linux were independent re-implementations of their APIs and ABIs.
– Jörg W Mittag
Aug 4 at 17:44
4
WinE also works the same way. It implements the Windows API and ABI, instead of porting Windows to run on Linux (which wouldn't be legally possible).
– Jörg W Mittag
Aug 4 at 17:45
|
show 3 more comments
3
It's still virtual, but WSL2 uses a linux (4.9) kernel instead of changing the calls to windows APIs and handling it that way.
– guiverc
Aug 4 at 7:14
9
@Sachin WSL 1 runs ELF binaries on Windows by translating Linux system calls to Windows system calls, which makes it exactly what its name describes, "Windows Subsystem for Linux"
– wjandrea
Aug 4 at 14:56
6
WSL 1 was not virtual @guiverc
– Adrian
Aug 4 at 16:34
3
@Sachin.Verma: What do you mean by "hoax"? WSL 1 was an implementation of the Linux kernel API and ABI, just like the Linux kernel is an implementation of the Linux kernel API and ABI. In fact, that is how most Linux compatibility layers work, e.g. the ones on FreeBSD, HP-UX, AIX, Solaris, etc. are also mostly independent re-implementations of the Linux kernel ABI and API instead of ports of the Linux kernel. It also works the other way around: all the compatibility layers for commercial Unices on Linux were independent re-implementations of their APIs and ABIs.
– Jörg W Mittag
Aug 4 at 17:44
4
WinE also works the same way. It implements the Windows API and ABI, instead of porting Windows to run on Linux (which wouldn't be legally possible).
– Jörg W Mittag
Aug 4 at 17:45
3
3
It's still virtual, but WSL2 uses a linux (4.9) kernel instead of changing the calls to windows APIs and handling it that way.
– guiverc
Aug 4 at 7:14
It's still virtual, but WSL2 uses a linux (4.9) kernel instead of changing the calls to windows APIs and handling it that way.
– guiverc
Aug 4 at 7:14
9
9
@Sachin WSL 1 runs ELF binaries on Windows by translating Linux system calls to Windows system calls, which makes it exactly what its name describes, "Windows Subsystem for Linux"
– wjandrea
Aug 4 at 14:56
@Sachin WSL 1 runs ELF binaries on Windows by translating Linux system calls to Windows system calls, which makes it exactly what its name describes, "Windows Subsystem for Linux"
– wjandrea
Aug 4 at 14:56
6
6
WSL 1 was not virtual @guiverc
– Adrian
Aug 4 at 16:34
WSL 1 was not virtual @guiverc
– Adrian
Aug 4 at 16:34
3
3
@Sachin.Verma: What do you mean by "hoax"? WSL 1 was an implementation of the Linux kernel API and ABI, just like the Linux kernel is an implementation of the Linux kernel API and ABI. In fact, that is how most Linux compatibility layers work, e.g. the ones on FreeBSD, HP-UX, AIX, Solaris, etc. are also mostly independent re-implementations of the Linux kernel ABI and API instead of ports of the Linux kernel. It also works the other way around: all the compatibility layers for commercial Unices on Linux were independent re-implementations of their APIs and ABIs.
– Jörg W Mittag
Aug 4 at 17:44
@Sachin.Verma: What do you mean by "hoax"? WSL 1 was an implementation of the Linux kernel API and ABI, just like the Linux kernel is an implementation of the Linux kernel API and ABI. In fact, that is how most Linux compatibility layers work, e.g. the ones on FreeBSD, HP-UX, AIX, Solaris, etc. are also mostly independent re-implementations of the Linux kernel ABI and API instead of ports of the Linux kernel. It also works the other way around: all the compatibility layers for commercial Unices on Linux were independent re-implementations of their APIs and ABIs.
– Jörg W Mittag
Aug 4 at 17:44
4
4
WinE also works the same way. It implements the Windows API and ABI, instead of porting Windows to run on Linux (which wouldn't be legally possible).
– Jörg W Mittag
Aug 4 at 17:45
WinE also works the same way. It implements the Windows API and ABI, instead of porting Windows to run on Linux (which wouldn't be legally possible).
– Jörg W Mittag
Aug 4 at 17:45
|
show 3 more comments
1 Answer
1
active
oldest
votes
From the article About WSL 2 of Microsoft Docs:
Brief overview of the WSL 2 architecture
WSL 2 uses the latest and greatest in virtualization technology to run
its Linux kernel inside of a lightweight utility virtual machine (VM).
However, WSL 2 will NOT be a traditional VM experience. A traditional
VM experience can be slow to boot up, is isolated, consumes lots of
resources, and requires your time to manage it. WSL 2 does not have
these attributes. It will still give the remarkable benefits of WSL 1:
High levels of integration between Windows and Linux, extremely fast
boot times, small resource footprint, and best of all will require no
VM configuration or management. While WSL 2 does use a VM, it will be
managed and run behind the scenes leaving you with the same user
experience as WSL 1.
As how we can see in the following articles (and discussions below them) WLS 2 uses Hyper-V feature:
- Microsoft devBlogs: WSL 2 is now available in Windows Insiders
- Thomas Maurer blog: Install WSL 2 on Windows 10
answered Aug 4 at 7:21
pa4080pa4080
16.4k7 gold badges34 silver badges81 bronze badges
add a comment |
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1 Answer
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1 Answer
1
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oldest
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active
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active
oldest
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From the article About WSL 2 of Microsoft Docs:
Brief overview of the WSL 2 architecture
WSL 2 uses the latest and greatest in virtualization technology to run
its Linux kernel inside of a lightweight utility virtual machine (VM).
However, WSL 2 will NOT be a traditional VM experience. A traditional
VM experience can be slow to boot up, is isolated, consumes lots of
resources, and requires your time to manage it. WSL 2 does not have
these attributes. It will still give the remarkable benefits of WSL 1:
High levels of integration between Windows and Linux, extremely fast
boot times, small resource footprint, and best of all will require no
VM configuration or management. While WSL 2 does use a VM, it will be
managed and run behind the scenes leaving you with the same user
experience as WSL 1.
As how we can see in the following articles (and discussions below them) WLS 2 uses Hyper-V feature:
- Microsoft devBlogs: WSL 2 is now available in Windows Insiders
- Thomas Maurer blog: Install WSL 2 on Windows 10
answered Aug 4 at 7:21
pa4080pa4080
16.4k7 gold badges34 silver badges81 bronze badges
add a comment |
From the article About WSL 2 of Microsoft Docs:
Brief overview of the WSL 2 architecture
WSL 2 uses the latest and greatest in virtualization technology to run
its Linux kernel inside of a lightweight utility virtual machine (VM).
However, WSL 2 will NOT be a traditional VM experience. A traditional
VM experience can be slow to boot up, is isolated, consumes lots of
resources, and requires your time to manage it. WSL 2 does not have
these attributes. It will still give the remarkable benefits of WSL 1:
High levels of integration between Windows and Linux, extremely fast
boot times, small resource footprint, and best of all will require no
VM configuration or management. While WSL 2 does use a VM, it will be
managed and run behind the scenes leaving you with the same user
experience as WSL 1.
As how we can see in the following articles (and discussions below them) WLS 2 uses Hyper-V feature:
- Microsoft devBlogs: WSL 2 is now available in Windows Insiders
- Thomas Maurer blog: Install WSL 2 on Windows 10
answered Aug 4 at 7:21
pa4080pa4080
16.4k7 gold badges34 silver badges81 bronze badges
add a comment |
From the article About WSL 2 of Microsoft Docs:
Brief overview of the WSL 2 architecture
WSL 2 uses the latest and greatest in virtualization technology to run
its Linux kernel inside of a lightweight utility virtual machine (VM).
However, WSL 2 will NOT be a traditional VM experience. A traditional
VM experience can be slow to boot up, is isolated, consumes lots of
resources, and requires your time to manage it. WSL 2 does not have
these attributes. It will still give the remarkable benefits of WSL 1:
High levels of integration between Windows and Linux, extremely fast
boot times, small resource footprint, and best of all will require no
VM configuration or management. While WSL 2 does use a VM, it will be
managed and run behind the scenes leaving you with the same user
experience as WSL 1.
As how we can see in the following articles (and discussions below them) WLS 2 uses Hyper-V feature:
- Microsoft devBlogs: WSL 2 is now available in Windows Insiders
- Thomas Maurer blog: Install WSL 2 on Windows 10
answered Aug 4 at 7:21
pa4080pa4080
16.4k7 gold badges34 silver badges81 bronze badges
From the article About WSL 2 of Microsoft Docs:
Brief overview of the WSL 2 architecture
WSL 2 uses the latest and greatest in virtualization technology to run
its Linux kernel inside of a lightweight utility virtual machine (VM).
However, WSL 2 will NOT be a traditional VM experience. A traditional
VM experience can be slow to boot up, is isolated, consumes lots of
resources, and requires your time to manage it. WSL 2 does not have
these attributes. It will still give the remarkable benefits of WSL 1:
High levels of integration between Windows and Linux, extremely fast
boot times, small resource footprint, and best of all will require no
VM configuration or management. While WSL 2 does use a VM, it will be
managed and run behind the scenes leaving you with the same user
experience as WSL 1.
As how we can see in the following articles (and discussions below them) WLS 2 uses Hyper-V feature:
- Microsoft devBlogs: WSL 2 is now available in Windows Insiders
- Thomas Maurer blog: Install WSL 2 on Windows 10
answered Aug 4 at 7:21
pa4080pa4080
16.4k7 gold badges34 silver badges81 bronze badges
answered Aug 4 at 7:21
pa4080pa4080
16.4k7 gold badges34 silver badges81 bronze badges
answered Aug 4 at 7:21
pa4080pa4080
16.4k7 gold badges34 silver badges81 bronze badges
answered Aug 4 at 7:21
pa4080pa4080
16.4k7 gold badges34 silver badges81 bronze badges
16.4k7 gold badges34 silver badges81 bronze badges
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3
It's still virtual, but WSL2 uses a linux (4.9) kernel instead of changing the calls to windows APIs and handling it that way.
– guiverc
Aug 4 at 7:14
9
@Sachin WSL 1 runs ELF binaries on Windows by translating Linux system calls to Windows system calls, which makes it exactly what its name describes, "Windows Subsystem for Linux"
– wjandrea
Aug 4 at 14:56
6
WSL 1 was not virtual @guiverc
– Adrian
Aug 4 at 16:34
3
@Sachin.Verma: What do you mean by "hoax"? WSL 1 was an implementation of the Linux kernel API and ABI, just like the Linux kernel is an implementation of the Linux kernel API and ABI. In fact, that is how most Linux compatibility layers work, e.g. the ones on FreeBSD, HP-UX, AIX, Solaris, etc. are also mostly independent re-implementations of the Linux kernel ABI and API instead of ports of the Linux kernel. It also works the other way around: all the compatibility layers for commercial Unices on Linux were independent re-implementations of their APIs and ABIs.
– Jörg W Mittag
Aug 4 at 17:44
4
WinE also works the same way. It implements the Windows API and ABI, instead of porting Windows to run on Linux (which wouldn't be legally possible).
– Jörg W Mittag
Aug 4 at 17:45