similar to: open/stat64 syscalls run faster on Xen VM than standard Linux

Hi Louis, On Wed, Apr 22, 2015 at 01:15:21PM +0200, L.P.H. van Belle wrote: > Or.. > get the sources and recompile agains 14.04 > > use the following commands. > enable the deb-src in /etc/apt/sources.list > and run : > > apt-get build-dep sernet-samba > apt-get source sernet-samba -b > > you wil end up with .deb files ;-) yep, thanks - I'll check it

Hi Jones, many thanks for your reply. Yepp, I'm using ACL's (Posix ACL's) on filesystem to regulate the access of users for files and directories. Do you mean that this is the "normal" way? These geteuid and getegid system calls are so slow? On the previous system (Debian Wheezy, Samba 3) I've also used ACL's, but there were much faster than this... What should

Dear all, When I compared the performance of some application on both a Xen domU and a standard linux machine (where domU runs on a similar physical mahine), I notice the application runs faster on the domU than on the physical machine. Instrumenting the application code shows the application spends more time on popen() calls on domU than on the physical machine. I wonder if xenlinux does some

Hello, I've noticed firefox got randomly stuck, and as sometimes that leads to a complete system lock-up, I've checked dmesg and got this: [Jan29 10:49] nouveau 0000:01:00.0: swiotlb buffer is full (sz: 2097152 bytes) [ +0.000033] swiotlb: coherent allocation failed for device 0000:01:00.0 size=2097152 [ +0.000004] CPU: 6 PID: 1023 Comm: Xorg Not tainted 4.15.0-rc8 #1 [ +0.000003]

I am running Gentoo. I am trying to get my /etc/fstab to automatically mount a remote Samba share at boot time. I have the following in my /etc/fstab file: //192.168.0.2/share /mnt/share cifs auto,credentials=/home/user/.smbpasswd,uid=1000,umask=002,user 0 0 This works fine if I specify the username and password in the /etc/fstab file. However, if I try to use the credentials file

Hi Jones, many thanks again four your help and your time. Thanks for the patch too - I'll check it up. On my Ubuntu, there is a Samba 4.1.6. I'll install the samba source package, and will try to apply the patch, then - I hope - the package will be compiled as well. I'll notify to you about the result. (First, I need to upgrade that server.) Thanks again, Ervin On Thu, Apr

On Wed, Jan 31, 2018 at 9:20 PM, Ilia Mirkin <imirkin at alum.mit.edu> wrote: > Yeah, a lot of people were getting that, as a result of some drm/ttm > hugepage usage. > > Christian, did a fix ever end up going out? If so, what kernel was it > included in? https://lkml.org/lkml/2018/1/16/106 Alex > > -ilia > > On Wed, Jan 31, 2018 at 11:05 AM, Ricardo Nabinger

Hi. I'm running Samba 2.2.2 and Linux 2.4.7 on a dual PPro-200/256KB server. The relevant NIC is an Intel EtherExpress PRO/100+. The problem I'm having is that certain programs will swamp the server; the load will spike immediately to 50% (i.e., 100% on one CPU) and performance will, naturally, bite. Having another active connection to the server at the same time causes _monster_

On 18/09/17 17:23, Ben Turner wrote: > Do you want tuned or untuned? If tuned I'd like to try one of my tunings for metadata, but I will use yours if you want. (Re-CC'd list) I would be interested in both, if possible: To confirm that it's not only my machines that exhibit this behaviour given my settings, and to see what can be achieved with your tuned settings. Thank you!

Hi! I'm currently hunting a strange problem and looking for help! I have a samba3 fileserver (currently samba-3.0.20b, but problem can be reproduced with samba-3.0.7, but _not_ with samba2 like 2.2.8a), and I see performance problems when writing files with MS word 2002 SP3 from a NT4.0 (SP6a) workstation. Saving even the smallest file takes more than 10 seconds! Copying files with Windows

Why is a windows 10 pro system issuing a sequence of smb2 commands every 30 seconds or so? SMB2:C CREATE(0x5), Sh(None), QFid, File=NULL@#15679 followed by SMB2:C QUERY INFORMATION(0x10),Class=Query FS Full Size, FID=0xB7CD3148(NULL@#15679) Folowed by SMB2:C CLOSE(0x6),FID=0xB7CD3148(NULL@#15679 Not sure why this sequence starts or stops. But it can run for hours at a time. This is happening

Hi, Since i upgraded to Linux Redhat 9.0 / samba-2.2.7a-8.9.0 / kernel 2.4.20-9 i have the following problem: # smbmount //amd/Films /mnt/disk -o username=jan,password=XXXXXX # In 50% of the times i do this command it mounts the share and goes into daemon mode and ps -aux shows one process smbmount. All ok. However in the other 50% the command just hangs. If i open a new window it did do

We have a Linux file server for a set of computer science and engineering labs where each lab contains machines running Mac OS X, Ubuntu Linux, or some incarnation of Windows. At times the these machines become almost unusable and I think I have narrowed the problem to smbd processes soaking up all the CPU on the server. Running 'top' on the server reveals a dozen or so entries like

Hi, my environment: Win2003 AD + Samba4 as second RW DC on debian wheeze. Samba compiled from source: samba --version Version 4.1.0pre1-GIT-c932b13 Installed Samba4 according these: https://wiki.samba.org/index.php/Main_Page https://wiki.samba.org/index.php/Samba4/HOWTO/Join_a_domain_as_a_DC https://wiki.samba.org/index.php/Samba4/Winbind Everything went good according tutorial, until I try get

Problem - smbpasswd does not seem to be recognizing my "add user script" option to automatically create Unix users when adding a samba user. I am running Samba version 2.2.8a (from source) on a Linux (Redhat 8.0) system. Relevant lines from smb.conf: [global] server string=Samba Server netbios name = smbpdc security = user domain logons=yes domain master = yes

I am still running CentOS 4.6 on our production systems, but I am starting to plan the upgrade to CentOS 5.1. I have one test system running 5.1 that is the exact same hardware configuration as my 4.6 test system. One of our builds runs about 6 times slower on the 5.1 system, even though is uses less overall CPU time. I first suspected something wrong with the disk, but the results

When attempting to mount the OCFS2 file system I'm getting the following error message: ocfs2_hb_ctl: Internal logic failure while starting heartbeat mount.ocfs2: Error when attempting to run /sbin/ocfs2_hb_ctl: "Operation not permitted" I followed the steps given in the users_guide: modprobe ocfs2_dlmfs mount -t configfs none /config mount -t ocfs2_dlmfs none /dlm o2cb_ctl

Hello Ervin, ? > Do you mean that this is the "normal" way? These geteuid and > getegid system calls are so slow? > >> ?% time seconds usecs/call calls errors syscall ?>> ? ------ ----------- ----------- --------- --------- ---------------- ?>> ? 15.68 15.894980 4 4398791 getegid >> 15.57 15.783699 4

Hello Ervin, The in-memory cache lookup could be added back into samba-4.1.6 by applying the attached patch, if it could be compiled with Louis how-to steps, perhaps got the chance to make U14.04 be stayed on samba-4. Here is my test, the test-bench is uploading 5000 files and each one is 1MB. The attached patch could improve 15% at case B). Case A) Original samba-4.1.6 will go through

Listing directories with many files (10000+) from a Windows client is nociceably slower when vfs_fruit is enabled on the samba server compared to the same setup without vfs_fruit. On my setup it's roughly 2.5 times slower. To me it looks like this is caused by the getxattr call which is only present with vfs_fruit activated and introduces an additional delay of ~ 0.00033 s per listed