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|asp.net|sql-server|asp.net-web-api|swagger| |
null |
If multi-core CPUs have a dedicated MMU for each core, multiple processes can run in parallel.I want to know what will happen if multi-core CPUs share the MMU.
I guess,if multi-core CPUs share the MMU, multiple processes can run in parallel. MMU looks at multiple different page tables at different times. Is this true? Can you give a detailed explanation? |
If multi-core CPUs share the MMU, can multiple processes run in parallel? |
|multithreading|process|operating-system|hardware|multicore| |
null |
Pymupdf Insert_image : TypeError takes 2 positional arguments but 3 were given |
|python|pdf|pdf-generation| |
null |
Yes, you can resume a failed or interrupted pip installation by using the --no-cache-dir option along with --no-binary :all:.
This will prevent pip from using cached downloads, which might have been corrupted due to the interrupted download.
Instead, it will try to download the package again from the beginning but will continue the download where it left off.
`pip install --no-cache-dir --no-binary :all: tensorflow`
In this above command tells pip to not use the cache directory and not to use any pre-built binary packages. It will then attempt to download the package again from the beginning but will resume the download.
Keep in mind that the interruption must have occurred during the download phase. if the installation process itself was interrupted, this method might not work. |
Your user class only contains fields, no properties. By default, only properties get serialized.
To fix this, you can turn your fields into properties.
public class User
{
public string Id { get; set; }
public string Firstname { get; set; }
public string Lastname { get; set; }
public User(string id, string firstname, string lastname)
{
Id = id;
Firstname = firstname;
Lastname = lastname;
}
}
As a sidenote, initializing either fields or properties to "" is spurious if you have a constructor that always assigns these values. |
i am trying to do the beaglebone black with `core-image-sato` build using yocto project version 4.0.16 (kirkstone). I am using Ubuntu 20.04LTS
The build `MACHINE ?= "beaglebone"`, and then I encountered an ERROR during the process. The error is related to `core-image-sato-1.0-r0 do_rootfs`, and the details are attached below.
[![error][1]][1]
[1]: https://i.stack.imgur.com/yDng9.png
The logfile shows this error:
update-rc.d: /home/swan/yocto/sources/tmp/work/beaglebone-poky-linux-gnueabi/core-image-sato/1.0-r0/rootfs/etc/init.d/rc.pvr: file does not exist
%post(ti-sgx-ddk-um-1.17.4948957-r38.beaglebone): waitpid(3912896) rc 3912896 status 100
warning: %post(ti-sgx-ddk-um-1.17.4948957-r38.beaglebone) scriptlet failed, exit status 1
Error in POSTIN scriptlet in rpm package ti-sgx-ddk-um |
I've run into very strange behavior I'm trying to understand in sed (GNU sed) 4.8 on Ubuntu.
This works:
```
$ echo "[some-text]" | sed -E 's/\[([a-zA-Z0-9\-]+)\]/REPLACED/'
REPLACED
```
But when I add an underscore, escaped or not, to the character set, it fails:
```
$ echo "[some-text]" | sed -E 's/\[([a-zA-Z0-9\-\_]+)\]/REPLACED/'
[some-text]
$ echo "[some-text]" | sed -E 's/\[([a-zA-Z0-9\-_]+)\]/REPLACED/'
[some-text]
```
Changing the order of the hyphen and underscore seems to work, whether or not either character is escaped:
```
$ echo "[some-text]" | sed -E 's/\[([a-zA-Z0-9\_\-]+)\]/REPLACED/'
REPLACED
$ echo "[some-text]" | sed -E 's/\[([a-zA-Z0-9_\-]+)\]/REPLACED/'
REPLACED
$ echo "[some-text]" | sed -E 's/\[([a-zA-Z0-9_-]+)\]/REPLACED/'
REPLACED
$ echo "[some-text]" | sed -E 's/\[([a-zA-Z0-9\_-]+)\]/REPLACED/'
REPLACED
```
Trying without the brackets, having an optional underscore prevents the match:
```
$ echo "thing by itself some-text" | sed -E 's/thing by itself ([a-zA-Z0-9\-\_]+)/REPLACED/'
REPLACED-text
$ echo "some-text" | sed -E 's/([a-zA-Z0-9\-_]+)/REPLACED/'
REPLACED-text
But only if it's the last thing in the character set:
$ echo "some-text" | sed -E 's/([a-zA-Z0-9\_\-]+)/REPLACED/'
REPLACED
$ echo "some-text" | sed -E 's/([a-zA-Z0-9_\-]+)/REPLACED/'
REPLACED
```
Is underscore at the end of a character set supposed to have special meaning, or is this a bug? |
Why does an underscore as the last character in a character set cause GNU sed not to match text containing a hyphen? |
|regex|sed| |
null |
How do I position a div in the upper left hand corner of the viewport using CSS only?
I know the following doesn't work, since it will not put the element in the top left corner if ancestors of the element have certain css properties (such as background blurs):
```
.topleft {
position: fixed;
top: 0;
left: 0;
}
```
I cannot control the ancestors of this element, so I am unable to use any solution that requires controlling or knowing the margins of elements higher in the DOM tree. Javascript is also not allowed.
EDIT: It is nonsensical to close this question as not reproducible, since a working example on codepen is included in the comments: https://codepen.io/Jeremy-Salwen/pen/RwOreKm |
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