Feel free to start discussion about linux-insides, Linux kernel and low-level stuff in general
hello every one
can you help me in my home work please
Write a bash shell script that can ping any domain name service (e.g. google.com, yahoo.com, localhost if you don't have net, etc.). And then capture the IP address that will be received by the Ping command. Analyze the IP address and findout if it is Class A, B, or C.
can you help me in my home work please
Write a bash shell script that can ping any domain name service (e.g. google.com, yahoo.com, localhost if you don't have net, etc.). And then capture the IP address that will be received by the Ping command. Analyze the IP address and findout if it is Class A, B, or C.
I upgraded my Kernel version from
The kernel call to
Does anyone know what could have changed over the versions of the kernel that I see a three-fold increase in my latencies (from 60ms to 188ms) ?
4.9.38-16.35.amzn1.x86_64 GNU/Linux to 4.14.51-60.38.amzn1.x86_64 GNU/Linux and the performance for my nginx(used as reverse-proxy server) running as a docker container has degraded.The kernel call to
__inet_check_established takes most of the CPU cycles and this happens when calling an upstream from nginx.Does anyone know what could have changed over the versions of the kernel that I see a three-fold increase in my latencies (from 60ms to 188ms) ?
maybe a bad place to ask a question about C but I guess you'd know this - I'm trying to find an answer for an hour but I just don't understand it - if I have a global variable in a C file and declare it static, it's visible only in that file (translation unit) but then again if you want it more globally, you put extern. What is with aglobal variable that doesn't have neither extern or static?
Thanks!
static local var: only that function can see that var, but it is "global" in the timing sense - because compiler put the var on the heap, and so allocated ONCE, and every function call the same var will be reused/accessed, ie, its previous values assigned will be retained and recognized by the next caller.
@razor381
Hello guys can someone please help me with an error in ubuntu
whenever i press "sudo apt-get update" i get an error -
E: Malformed entry 1 in list file /etc/apt/sources.list.d/sublime-text.list (Component)
E: The list of sources could not be read.
E: Malformed entry 1 in list file /etc/apt/sources.list.d/sublime-text.list (Component)
E: The list of sources could not be read.
what is the solution to this problem, anyone please?
Hello guys can someone please help me with an error in ubuntu
whenever i press "sudo apt-get update" i get an error -
E: Malformed entry 1 in list file /etc/apt/sources.list.d/sublime-text.list (Component)
E: The list of sources could not be read.
E: Malformed entry 1 in list file /etc/apt/sources.list.d/sublime-text.list (Component)
E: The list of sources could not be read.
what is the solution to this problem, anyone please?
lololol
I get This error : Cannot set new settings: Operation not supported
not setting transceive
not setting transceive
I want to force transceiver to external because after upgrade I see that :
ettings for eth1:
Speed: 1000Mb/s
Duplex: Full
Port: FIBRE
PHYAD: 0
Transceiver: internal
Speed: 1000Mb/s
Duplex: Full
Port: FIBRE
PHYAD: 0
Transceiver: internal
and before upgrade :
Port: FIBRE
PHYAD: 0
Transceiver: external
Thank you
maxxam@osmc:~$ cp -R ../osmc/.kodi/ kodi-backup
maxxam@osmc:~$ cd kodi-backup/
maxxam@osmc:~/kodi-backup$ ls
ls: cannot open directory '.': Permission denied
maxxam@osmc:~/kodi-backup$ sudo ls -la
total 28
d-wxr-x--x 7 maxxam maxxam 4096 Jul 15 19:54 .
...
You have x (exec) permission, which is required to enter a directory, but no r permission
That's why you could cd' into this dir but was not able to list its contents
:)
Flags: 0x5000400, Version5 EABI, hard-float ABI which parmaters will cause the Flags to the hard-float ABI
I have use the -mfloat-abi=softfp, but it doesn't work
