Add options to have fio latency profile a device

[fio.git] / fio.h

diff --git a/fio.h b/fio.h
index d0fe83a5ca6e8a62e2eb74b082e35063cdbd1039..a0927bd9d60cebb8c03a873280ac097459be0390 100644 (file)
--- a/fio.h
+++ b/fio.h
@@ -248,6 +248,16 @@ struct thread_data {
        unsigned int tv_cache_mask;
        unsigned int ramp_time_over;
 
+       /*
+        * Time since last latency_window was started
+        */
+       struct timeval latency_ts;
+       unsigned int latency_qd;
+       unsigned int latency_qd_high;
+       unsigned int latency_qd_low;
+       unsigned int latency_failed;
+       uint64_t latency_ios;
+
        /*
         * read/write mixed workload state
         */
@@ -483,6 +493,12 @@ extern int is_blktrace(const char *, int *);
 extern int load_blktrace(struct thread_data *, const char *, int);
 #endif
 
+/*
+ * Latency target helpers
+ */
+extern void lat_target_check(struct thread_data *);
+extern void lat_target_init(struct thread_data *);
+
 #define for_each_td(td, i)     \
        for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
 #define for_each_file(td, f, i)        \