import quincy beta 17.1.0

[ceph.git] / ceph / src / seastar / doc / io-properties-file.md

diff --git a/ceph/src/seastar/doc/io-properties-file.md b/ceph/src/seastar/doc/io-properties-file.md
index 2af0b5bc2ee4a479e5a7987642e90958739d2367..7503190775d5a53f79ac9394c691feebc7416369 100644 (file)
--- a/ceph/src/seastar/doc/io-properties-file.md
+++ b/ceph/src/seastar/doc/io-properties-file.md
@@ -19,6 +19,12 @@ optional):
 * `write_iops`: write IOPS speed of the device
 * `write_bandwidth`: write bandwidth speed of the device
 
+
+Additionally the following optional properties can be added:
+
+* `read_saturation_length`: read buffer length to saturate the device throughput
+* `write_saturation_length`: write buffer length to saturate the device throughput
+
 Those quantities can be specified in raw form, or followed with a
 suffix (k, M, G, or T).
 
@@ -31,4 +37,5 @@ disks:
     read_bandwidth: 545M
     write_iops: 85000
     write_bandwidth: 510M
+    write_saturation_length: 64k
 ```