iolog: run compression work at slightly elevated nice level

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index e94d09f334d66fa58fe4cd76391a8f6e7f03e382..fbc455d44797dda6e779f561f1fe77178862583e 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -1350,6 +1350,12 @@ log_compression=int      If this is set, fio will compress the IO logs as
                in the specified log file. This feature depends on the
                availability of zlib.
 
+log_store_compressed=bool      If set, and log_compression is also set,
+               fio will store the log files in a compressed format. They
+               can be decompressed with fio, using the --inflate-log
+               command line parameter. The files will be stored with a
+               .fz suffix.
+
 lockmem=int    Pin down the specified amount of memory with mlock(2). Can
                potentially be used instead of removing memory or booting
                with less memory to simulate a smaller amount of memory.