From: Alexander Usyskin <alexander.usyskin@intel.com>
To: Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org,
Alexander Usyskin <alexander.usyskin@intel.com>,
Menachem Adin <menachem.adin@intel.com>
Subject: [PATCH char-misc-next 4/4] mei: me: reduce active polling timeout to 20 ms
Date: Mon, 31 Aug 2026 14:38:34 +0300 [thread overview]
Message-ID: <20260831-cri_polling-v1-4-d927315e6598@intel.com> (raw)
In-Reply-To: <20260831-cri_polling-v1-0-d927315e6598@intel.com>
Improve performance of polling by reducing active timeout.
20 ms active timeout helps increase channel throughtput
and significately reduces data transfer times.
Our tests have prooved that timeout decrease does no ill effects
for core CPU utilization.
Reviewed-by: Menachem Adin <menachem.adin@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
---
drivers/misc/mei/hw-me.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index f3d833be0e1a..1c3ab9eb8b1b 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -1419,7 +1419,7 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id)
}
EXPORT_SYMBOL_GPL(mei_me_irq_thread_handler);
-#define MEI_POLL_ACTIVE_MS 100
+#define MEI_POLL_ACTIVE_MS 20
#define MEI_POLL_IDLE_MS 500
/**
--
2.53.0
prev parent reply other threads:[~2026-08-31 11:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-31 11:38 [PATCH char-misc-next 0/4] mei: csc: add and enable polling option Alexander Usyskin
2026-08-31 11:38 ` [PATCH char-misc-next 1/4] mei: make polling wait interruptible Alexander Usyskin
2026-08-31 11:38 ` [PATCH char-misc-next 2/4] mei: csc: add option for polling and enable it Alexander Usyskin
2026-08-31 11:38 ` [PATCH char-misc-next 3/4] mei: me: avoid hw access in polling when not active Alexander Usyskin
2026-08-31 11:38 ` Alexander Usyskin [this message]
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