mirror of https://github.com/ceph/ceph
149 lines
4.0 KiB
Groff
149 lines
4.0 KiB
Groff
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.TH "CEPH-SYN" "8" "December 09, 2013" "dev" "Ceph"
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.SH NAME
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ceph-syn \- ceph synthetic workload generator
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.SH SYNOPSIS
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.nf
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\fBceph\-syn\fP [ \-m \fImonaddr\fP:\fIport\fP ] \-\-syn \fIcommand\fP \fI\&...\fP
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.fi
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.sp
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.SH DESCRIPTION
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.sp
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\fBceph\-syn\fP is a simple synthetic workload generator for the Ceph
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distributed file system. It uses the userspace client library to
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generate simple workloads against a currently running file system. The
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file system need not be mounted via ceph\-fuse(8) or the kernel client.
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.sp
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One or more \fB\-\-syn\fP command arguments specify the particular
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workload, as documented below.
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.SH OPTIONS
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.INDENT 0.0
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.TP
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.B \-d
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Detach from console and daemonize after startup.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-c ceph.conf, \-\-conf=ceph.conf
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Use \fIceph.conf\fP configuration file instead of the default
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\fB/etc/ceph/ceph.conf\fP to determine monitor addresses during
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startup.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-m monaddress[:port]
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Connect to specified monitor (instead of looking through
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\fBceph.conf\fP).
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-num_client num
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Run num different clients, each in a separate thread.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-syn workloadspec
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Run the given workload. May be specified as many times as
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needed. Workloads will normally run sequentially.
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.UNINDENT
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.SH WORKLOADS
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.sp
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Each workload should be preceded by \fB\-\-syn\fP on the command
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line. This is not a complete list.
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.INDENT 0.0
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.TP
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.B \fBmknap\fP \fIpath\fP \fIsnapname\fP
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Create a snapshot called \fIsnapname\fP on \fIpath\fP\&.
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.TP
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.B \fBrmsnap\fP \fIpath\fP \fIsnapname\fP
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Delete snapshot called \fIsnapname\fP on \fIpath\fP\&.
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.TP
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.B \fBrmfile\fP \fIpath\fP
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Delete/unlink \fIpath\fP\&.
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.TP
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.B \fBwritefile\fP \fIsizeinmb\fP \fIblocksize\fP
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Create a file, named after our client id, that is \fIsizeinmb\fP MB by
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writing \fIblocksize\fP chunks.
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.TP
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.B \fBreadfile\fP \fIsizeinmb\fP \fIblocksize\fP
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Read file, named after our client id, that is \fIsizeinmb\fP MB by
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writing \fIblocksize\fP chunks.
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.TP
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.B \fBrw\fP \fIsizeinmb\fP \fIblocksize\fP
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Write file, then read it back, as above.
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.TP
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.B \fBmakedirs\fP \fInumsubdirs\fP \fInumfiles\fP \fIdepth\fP
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Create a hierarchy of directories that is \fIdepth\fP levels deep. Give
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each directory \fInumsubdirs\fP subdirectories and \fInumfiles\fP files.
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.TP
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.B \fBwalk\fP
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Recursively walk the file system (like find).
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.UNINDENT
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.SH AVAILABILITY
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.sp
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\fBceph\-syn\fP is part of the Ceph distributed storage system. Please refer to
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the Ceph documentation at \fI\%http://ceph.com/docs\fP for more information.
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.SH SEE ALSO
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.sp
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\fBceph\fP(8),
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\fBceph\-fuse\fP(8)
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.SH COPYRIGHT
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2010-2013, Inktank Storage, Inc. and contributors. Licensed under Creative Commons BY-SA
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