search for: vfs_readahead

...d inside of the VFS layer which means it is now possible to support multiple ACL implementations on the same server including NFSv4 and GPFS ACLs. VFS ReadAhead Plugin ==================== Windows Vista introduces pipe-lined read support for improved performance when transferring files. The new vfs_readahead plugin allows Linux file servers to utilize additional Kernel buffers for caching files in order to avoid Disk I/O wait time when serving Vista clients. If you experience poor read performance between Linux servers and Vista clients, please test the vfs_readahead module by adding the following lin...

...d inside of the VFS layer which means it is now possible to support multiple ACL implementations on the same server including NFSv4 and GPFS ACLs. VFS ReadAhead Plugin ==================== Windows Vista introduces pipe-lined read support for improved performance when transferring files. The new vfs_readahead plugin allows Linux file servers to utilize additional Kernel buffers for caching files in order to avoid Disk I/O wait time when serving Vista clients. If you experience poor read performance between Linux servers and Vista clients, please test the vfs_readahead module by adding the following lin...

...d inside of the VFS layer which means it is now possible to support multiple ACL implementations on the same server including NFSv4 and GPFS ACLs. VFS ReadAhead Plugin ==================== Windows Vista introduces pipe-lined read support for improved performance when transferring files. The new vfs_readahead plugin allows Linux file servers to utilize additional Kernel buffers for caching files in order to avoid Disk I/O wait time when serving Vista clients. If you experience poor read performance between Linux servers and Vista clients, please test the vfs_readahead module by adding the following lin...

...d inside of the VFS layer which means it is now possible to support multiple ACL implementations on the same server including NFSv4 and GPFS ACLs. VFS ReadAhead Plugin ==================== Windows Vista introduces pipe-lined read support for improved performance when transferring files. The new vfs_readahead plugin allows Linux file servers to utilize additional Kernel buffers for caching files in order to avoid Disk I/O wait time when serving Vista clients. If you experience poor read performance between Linux servers and Vista clients, please test the vfs_readahead module by adding the following lin...

...d inside of the VFS layer which means it is now possible to support multiple ACL implementations on the same server including NFSv4 and GPFS ACLs. VFS ReadAhead Plugin ==================== Windows Vista introduces pipe-lined read support for improved performance when transferring files. The new vfs_readahead plugin allows Linux file servers to utilize additional Kernel buffers for caching files in order to avoid Disk I/O wait time when serving Vista clients. If you experience poor read performance between Linux servers and Vista clients, please test the vfs_readahead module by adding the following lin...

...d inside of the VFS layer which means it is now possible to support multiple ACL implementations on the same server including NFSv4 and GPFS ACLs. VFS ReadAhead Plugin ==================== Windows Vista introduces pipe-lined read support for improved performance when transferring files. The new vfs_readahead plugin allows Linux file servers to utilize additional Kernel buffers for caching files in order to avoid Disk I/O wait time when serving Vista clients. If you experience poor read performance between Linux servers and Vista clients, please test the vfs_readahead module by adding the following lin...

...d inside of the VFS layer which means it is now possible to support multiple ACL implementations on the same server including NFSv4 and GPFS ACLs. VFS ReadAhead Plugin ==================== Windows Vista introduces pipe-lined read support for improved performance when transferring files. The new vfs_readahead plugin allows Linux file servers to utilize additional Kernel buffers for caching files in order to avoid Disk I/O wait time when serving Vista clients. If you experience poor read performance between Linux servers and Vista clients, please test the vfs_readahead module by adding the following lin...

...d inside of the VFS layer which means it is now possible to support multiple ACL implementations on the same server including NFSv4 and GPFS ACLs. VFS ReadAhead Plugin ==================== Windows Vista introduces pipe-lined read support for improved performance when transferring files. The new vfs_readahead plugin allows Linux file servers to utilize additional Kernel buffers for caching files in order to avoid Disk I/O wait time when serving Vista clients. If you experience poor read performance between Linux servers and Vista clients, please test the vfs_readahead module by adding the following lin...

Quick question... The docs for vfs readahead mention Windows Vista, but what about modern Windows versions? Windows Server 2016 or Windows Server 2019? Thank you, -- BOB BUCK SENIOR PLATFORM SOFTWARE ENGINEER SKIDMORE, OWINGS & MERRILL 7 WORLD TRADE CENTER 250 GREENWICH STREET NEW YORK, NY 10007 T (212) 298-9624 ROBERT.BUCK at SOM.COM

...ed to slow browsing of heavily populated directories (over 10,000 files per directory), but that is not the case here. I have not found much with respect to any kind of performance tuning that can be done to improve the feedback of filesystem metadata through Samba to clients. Is this something the vfs_readahead module can help with? Its man page only mentions Windows Vista, but it isn't clear if the issue it addresses remains in newer versions of Windows Explorer. Thanks, Andrew Richards Senior Systems Engineer keepertechnology

Is the ?important" vfs objects parameter documented in a man page anywhere? It appears in the man pages of several vfs modules, but never fully documented that I could find. Apparently it once was from a now dead link https://www.samba.org/samba/docs/old/Samba3-HOWTO/smb.conf.5.html#VFSOBJECTS <https://www.samba.org/samba/docs/old/Samba3-HOWTO/smb.conf.5.html#VFSOBJECTS> . Todd

...le-fhs --with-cluster-support --with-socketpath=/var/lib/ctdb/ctdb.socket --with-pam --with-pammodulesdir=lib64/security --with-piddir=/run/samba --with-relro --enable-avahi --with-systemd --with-shared-modules=auth_unix,auth_wbc,auth_server,auth_netlogond,auth_script,auth_samba4,vfs_cacheprime,vfs_readahead,pdb_tdbsam,pdb_ldap,pdb_ads,pdb_smbpasswd,pdb_wbc_sam,pdb_samba4,idmap_ad,idmap_adex,idmap_hash,idmap_ldap,idmap_rfc2307,idmap_rid,idmap_tdb2 --without-gpgme '--bundled-libraries=!tdb,!talloc,!tevent,ALL' ... make install DESTDIR=/home/abuild/rpmbuild/BUILDROOT/samba-4.10.0-100.x86_64...

...ed to slow browsing of heavily populated directories (over 10,000 files per directory), but that is not the case here. I have not found much with respect to any kind of performance tuning that can be done to improve the feedback of filesystem metadata through Samba to clients. Is this something the vfs_readahead module can help with? Its man page only mentions Windows Vista, but it isn't clear if the issue it addresses remains in newer versions of Windows Explorer. Can you do any performance tests on the local filesystem to see if this is due to XFS xattr performance ? If you're migrating a lot of...

...gt; --with-socketpath=/var/lib/ctdb/ctdb.socket --with-pam  > --with-pammodulesdir=lib64/security --with-piddir=/run/samba  > --with-relro --enable-avahi --with-systemd  > --with-shared- > modules=auth_unix,auth_wbc,auth_server,auth_netlogond,auth_script,aut > h_samba4,vfs_cacheprime,vfs_readahead,pdb_tdbsam,pdb_ldap,pdb_ads,pdb > _smbpasswd,pdb_wbc_sam,pdb_samba4,idmap_ad,idmap_adex,idmap_hash,idma > p_ldap,idmap_rfc2307,idmap_rid,idmap_tdb2  > --without-gpgme '--bundled-libraries=!tdb,!talloc,!tevent,ALL' Try the attached.  If this fixes it file a bug and we can backport...

...objects. ??? Default: vfs objects = ??? Example: vfs objects = extd_audit recycle There are quite a few 'vfs-*' man pages, but they do not seem to listed anywhere, but, from git, this is a full list: vfs_acl_xattr?????? vfs_prealloc vfs_aio_fork??????? vfs_preopen vfs_aio_pthread???? vfs_readahead vfs_audit?????????? vfs_readonly vfs_btrfs?????????? vfs_recycle vfs_cacheprime????? vfs_shadow_copy2 vfs_cap???????????? vfs_shadow_copy vfs_catia?????????? vfs_shell_snap vfs_ceph??????????? vfs_snapper vfs_ceph_snapshots? vfs_streams_depot vfs_commit????????? vfs_streams_xattr vfs_crossrename???...

...> > Example: vfs objects = extd_audit recycle > > There are quite a few 'vfs-*' man pages, but they do not seem to listed anywhere, but, from git, this is a full list: > > vfs_acl_xattr vfs_prealloc > vfs_aio_fork vfs_preopen > vfs_aio_pthread vfs_readahead > vfs_audit vfs_readonly > vfs_btrfs vfs_recycle > vfs_cacheprime vfs_shadow_copy2 > vfs_cap vfs_shadow_copy > vfs_catia vfs_shell_snap > vfs_ceph vfs_snapper > vfs_ceph_snapshots vfs_streams_depot > vfs_commit...

...ed to slow browsing of heavily populated directories (over 10,000 files per directory), but that is not the case here. I have not found much with respect to any kind of performance tuning that can be done to improve the feedback of filesystem metadata through Samba to clients. Is this something the vfs_readahead module can help with? Its man page only mentions Windows Vista, but it isn't clear if the issue it addresses remains in newer versions of Windows Explorer. > > Can you do any performance tests on the local > filesystem to see if this is due to XFS xattr > performance ? If you'r...

Hi, I tested a little bit Samba with Windows vista and found serious performance issue regarding reading large files from Samba server. Computers that I tested Samba with were all identical computers equipped with 2,8 GHz Pentium D processors, 1 GB memory and 1 Gbit/s LAN. All computers have only external USB hard drives so that it is easier to change from operating system to another. First I

...samba.org> wrote: > On Mon, Nov 09, 2020 at 04:48:31PM -0500, Robert Buck via samba wrote: > > Quick question... > > > > The docs for vfs readahead mention Windows Vista, but what about modern > > Windows versions? Windows Server 2016 or Windows Server 2019? > > vfs_readahead would need to be updated for our > modern VFS. It only calls Linux readahead for > sendfile()/pread(), and modern Samba exclusively > calls pread_send()/pread_recv() with threads > on most systems. > > -- BOB BUCK SENIOR PLATFORM SOFTWARE ENGINEER SKIDMORE, OWINGS & MERRIL...

We are testing Samba 3 (and 4) on Fedora Core 13, 10Gbit connection with a Mac OS 10.6.4 system as the client. We will be adding some Windows machines sooner or later with 10Gbit interfaces. We are seeing 100-150MBytes/sec read or write performance between the Mac and the FC13 system over 10Gbit interface but it should be capable of 400-500MBytes/sec. We have a local raid on the FC13 system