fio: allow arithmetic expressions to be used in job files

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index d64fbb7ab5e0832f61f167d7fe2b20872f9ec2c1..2fbdb00d2f9f1b41ac15c6a3f2d9471d35cae3b6 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -115,7 +115,12 @@ and there may be any number of global sections.  Specific job definitions
 may override any parameter set in global sections.
 .SH "JOB PARAMETERS"
 .SS Types
 may override any parameter set in global sections.
 .SH "JOB PARAMETERS"
 .SS Types

-Some parameters may take arguments of a specific type.  The types used are:
+Some parameters may take arguments of a specific type.
+Anywhere a numeric value is required, an arithmetic expression may be used,
+provided it is surrounded by parentheses.  Suffixes currently do not
+work with arithmetic expressions.  Supported operators are
+addition, subtraction, multiplication and division.
+The types used are:

 .TP
 .I str
 String: a sequence of alphanumeric characters.
 .TP
 .I str
 String: a sequence of alphanumeric characters.