Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   31170 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

CEPH-SYN(8)			     Ceph			   CEPH-SYN(8)

NAME
       ceph-syn - ceph synthetic workload generator

SYNOPSIS
       ceph-syn [ -m monaddr:port ] --syn command ...

DESCRIPTION
       ceph-syn is a simple synthetic workload generator for the Ceph distrib‐
       uted file system. It uses the userspace client library to generate sim‐
       ple  workloads against a currently running file system. The file system
       need not be mounted via ceph-fuse(8) or the kernel client.

       One or more --syn command arguments specify the particular workload, as
       documented below.

OPTIONS
       -d     Detach from console and daemonize after startup.

       -c ceph.conf, --conf=ceph.conf
	      Use   ceph.conf	configuration  file  instead  of  the  default
	      /etc/ceph/ceph.conf  to  determine  monitor   addresses	during
	      startup.

       -m monaddress[:port]
	      Connect	to  specified  monitor	(instead  of  looking  through
	      ceph.conf).

       --num_client num
	      Run num different clients, each in a separate thread.

       --syn workloadspec
	      Run the given workload.  May  be	specified  as  many  times  as
	      needed. Workloads will normally run sequentially.

WORKLOADS
       Each  workload should be preceded by --syn on the command line. This is
       not a complete list.

       mknap path snapname
	      Create a snapshot called snapname on path.

       rmsnap path snapname
	      Delete snapshot called snapname on path.

       rmfile path
	      Delete/unlink path.

       writefile sizeinmb blocksize
	      Create a file, named after our client id, that is sizeinmb MB by
	      writing blocksize chunks.

       readfile sizeinmb blocksize
	      Read  file,  named  after	 our client id, that is sizeinmb MB by
	      writing blocksize chunks.

       rw sizeinmb blocksize
	      Write file, then read it back, as above.

       makedirs numsubdirs numfiles depth
	      Create a hierarchy of directories that  is  depth	 levels	 deep.
	      Give  each  directory  numsubdirs	 subdirectories	 and  numfiles
	      files.

       walk   Recursively walk the file system (like find).

AVAILABILITY
       ceph-syn is part of the Ceph distributed file system. Please  refer  to
       the Ceph wiki at http://ceph.newdream.net/wiki for more information.

SEE ALSO
       ceph(8), ceph-fuse(8)

COPYRIGHT
       2011, New Dream Network

dev			      September 22, 2011		   CEPH-SYN(8)

Vote for polarhome