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
-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.