Wire up exp/test-expression-parser

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index d64fbb7ab5e0832f61f167d7fe2b20872f9ec2c1..01c7cec03b5b345b3ac135608c5846844d145980 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -115,7 +115,15 @@ 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.
+Supported operators are
+addition, subtraction, multiplication, division, modulus, and exponentiation.
+For time values in expressions
+units are microseconds by default.  This is different than for time
+values not in expressions (not enclosed in parentheses).
+The types used are:
 .TP
 .I str
 String: a sequence of alphanumeric characters.