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block: deadline: Optimize for non-rotational

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Pranav Vashi 2017-05-20 23:42:56 -04:00 committed by BlackMesa123
parent 7d2fb04168
commit b2e37cb38d
1 changed files with 5 additions and 5 deletions
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10
block/deadline-iosched.c
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@ -17,10 +17,10 @@
/* /*
* See Documentation/block/deadline-iosched.txt * See Documentation/block/deadline-iosched.txt
*/ */
static const int read_expire = HZ / 2; /* max time before a read is submitted. */ static const int read_expire = HZ / 4; /* max time before a read is submitted. */
static const int write_expire = 5 * HZ; /* ditto for writes, these limits are SOFT! */ static const int write_expire = 2 * HZ; /* ditto for writes, these limits are SOFT! */
static const int writes_starved = 2; /* max times reads can starve a write */ static const int writes_starved = 1; /* max times reads can starve a write */
static const int fifo_batch = 16; /* # of sequential requests treated as one static const int fifo_batch = 8; /* # of sequential requests treated as one
by the above parameters. For throughput. */ by the above parameters. For throughput. */
struct deadline_data { struct deadline_data {
@ -31,7 +31,7 @@ struct deadline_data {
/* /*
* requests (deadline_rq s) are present on both sort_list and fifo_list * requests (deadline_rq s) are present on both sort_list and fifo_list
*/ */
struct rb_root sort_list[2]; struct rb_root sort_list[2];
struct list_head fifo_list[2]; struct list_head fifo_list[2];
/* /*