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From: Richard Palethorpe <rpalethorpe@suse.com>
To: ltp@lists.linux.it
Subject: [LTP] [PATCH v4 3/7] fzsync: Correctly print positive lower delay range bound
Date: Tue, 13 Apr 2021 08:07:49 +0100	[thread overview]
Message-ID: <20210413070753.1691-4-rpalethorpe@suse.com> (raw)
In-Reply-To: <20210413070753.1691-1-rpalethorpe@suse.com>

If the magnitude of delay_bias is large enough then it can turn the
lower bound positive.

Signed-off-by: Richard Palethorpe <rpalethorpe@suse.com>
Reviewed-by: Cyril Hrubis <chrubis@suse.cz>
Acked-by: Petr Vorel <pvorel@suse.cz>
Reviewed-by: Li Wang <liwang@redhat.com>
---
 include/tst_fuzzy_sync.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/tst_fuzzy_sync.h b/include/tst_fuzzy_sync.h
index b8841d96d..4063e95cb 100644
--- a/include/tst_fuzzy_sync.h
+++ b/include/tst_fuzzy_sync.h
@@ -518,9 +518,9 @@ static void tst_fzsync_pair_update(struct tst_fzsync_pair *pair)
 			tst_res(TINFO,
 				"Reached deviation ratios < %.2f, introducing randomness",
 				pair->max_dev_ratio);
-			tst_res(TINFO, "Delay range is [-%d, %d]",
-				(int)(pair->diff_sb.avg / per_spin_time) + pair->delay_bias,
-				(int)(pair->diff_sa.avg / per_spin_time) - pair->delay_bias);
+			tst_res(TINFO, "Delay range is [%d, %d]",
+				-(int)(pair->diff_sb.avg / per_spin_time) + pair->delay_bias,
+				(int)(pair->diff_sa.avg / per_spin_time) + pair->delay_bias);
 			tst_fzsync_pair_info(pair);
 			pair->sampling = -1;
 		}
-- 
2.30.2


  parent reply	other threads:[~2021-04-13  7:07 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-13  7:07 [LTP] [PATCH v4 0/7] Fuzzy Sync single core support and tests Richard Palethorpe
2021-04-13  7:07 ` [LTP] [PATCH v4 1/7] fzsync: Add self tests Richard Palethorpe
2021-04-13  8:34   ` Cyril Hrubis
2021-04-13  7:07 ` [LTP] [PATCH v4 2/7] fzsync: Reset delay bias Richard Palethorpe
2021-04-13  7:07 ` Richard Palethorpe [this message]
2021-04-13  7:07 ` [LTP] [PATCH v4 4/7] fzsync: Add sched_yield for single core machine Richard Palethorpe
2021-04-13  7:07 ` [LTP] [PATCH v4 5/7] fzsync: Move yield check out of loop and add yield to delay Richard Palethorpe
2021-04-13  7:07 ` [LTP] [PATCH v4 6/7] API: Add tst_ncpus_available Richard Palethorpe
2021-04-13  7:07 ` [LTP] [PATCH v4 7/7] fzsync: Check processor affinity Richard Palethorpe

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