DPDK patches and discussions
 help / color / mirror / Atom feed
From: <pbhagavatula@marvell.com>
To: <jerinj@marvell.com>, Pavan Nikhilesh <pbhagavatula@marvell.com>
Cc: <dev@dpdk.org>
Subject: [dpdk-dev] [PATCH 3/4] event/octeontx2: reduce chunk pool memory usage
Date: Thu, 25 Feb 2021 17:53:13 +0530
Message-ID: <20210225122315.6350-3-pbhagavatula@marvell.com> (raw)
In-Reply-To: <20210225122315.6350-1-pbhagavatula@marvell.com>

From: Pavan Nikhilesh <pbhagavatula@marvell.com>

Reduce amount of memory used by chunk pool when the mempool used
is OCTEONTX2 NPA.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
---
 drivers/event/octeontx2/otx2_tim_evdev.c | 19 ++++++++++---------
 drivers/event/octeontx2/otx2_tim_evdev.h |  4 ++--
 2 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/event/octeontx2/otx2_tim_evdev.c b/drivers/event/octeontx2/otx2_tim_evdev.c
index d1e967eb7..4fb002ddb 100644
--- a/drivers/event/octeontx2/otx2_tim_evdev.c
+++ b/drivers/event/octeontx2/otx2_tim_evdev.c
@@ -91,6 +91,8 @@ tim_chnk_pool_create(struct otx2_tim_ring *tim_ring,
 	if (cache_sz > RTE_MEMPOOL_CACHE_MAX_SIZE)
 		cache_sz = RTE_MEMPOOL_CACHE_MAX_SIZE;
 
+	cache_sz = cache_sz != 0 ? cache_sz : 2;
+	tim_ring->nb_chunks += (cache_sz * rte_lcore_count());
 	if (!tim_ring->disable_npa) {
 		tim_ring->chunk_pool = rte_mempool_create_empty(pool_name,
 				tim_ring->nb_chunks, tim_ring->chunk_sz,
@@ -268,16 +270,15 @@ otx2_tim_ring_create(struct rte_event_timer_adapter *adptr)
 		}
 	}
 
-	tim_ring->nb_chunks = tim_ring->nb_timers / OTX2_TIM_NB_CHUNK_SLOTS(
-							tim_ring->chunk_sz);
-	tim_ring->nb_chunk_slots = OTX2_TIM_NB_CHUNK_SLOTS(tim_ring->chunk_sz);
-
-	if (tim_ring->disable_npa)
+	if (tim_ring->disable_npa) {
+		tim_ring->nb_chunks =
+			tim_ring->nb_timers /
+			OTX2_TIM_NB_CHUNK_SLOTS(tim_ring->chunk_sz);
 		tim_ring->nb_chunks = tim_ring->nb_chunks * tim_ring->nb_bkts;
-	else
-		tim_ring->nb_chunks = tim_ring->nb_chunks + tim_ring->nb_bkts;
-
-	/* Create buckets. */
+	} else {
+		tim_ring->nb_chunks = tim_ring->nb_timers;
+	}
+	tim_ring->nb_chunk_slots = OTX2_TIM_NB_CHUNK_SLOTS(tim_ring->chunk_sz);
 	tim_ring->bkt = rte_zmalloc("otx2_tim_bucket", (tim_ring->nb_bkts) *
 				    sizeof(struct otx2_tim_bkt),
 				    RTE_CACHE_LINE_SIZE);
diff --git a/drivers/event/octeontx2/otx2_tim_evdev.h b/drivers/event/octeontx2/otx2_tim_evdev.h
index bf89b85b0..2a3b84a43 100644
--- a/drivers/event/octeontx2/otx2_tim_evdev.h
+++ b/drivers/event/octeontx2/otx2_tim_evdev.h
@@ -65,12 +65,12 @@
 
 #define OTX2_MAX_TIM_RINGS		(256)
 #define OTX2_TIM_MAX_BUCKETS		(0xFFFFF)
-#define OTX2_TIM_RING_DEF_CHUNK_SZ	(4096)
+#define OTX2_TIM_RING_DEF_CHUNK_SZ	(1024)
 #define OTX2_TIM_CHUNK_ALIGNMENT	(16)
 #define OTX2_TIM_MAX_BURST		(RTE_CACHE_LINE_SIZE / \
 						OTX2_TIM_CHUNK_ALIGNMENT)
 #define OTX2_TIM_NB_CHUNK_SLOTS(sz)	(((sz) / OTX2_TIM_CHUNK_ALIGNMENT) - 1)
-#define OTX2_TIM_MIN_CHUNK_SLOTS	(0x1)
+#define OTX2_TIM_MIN_CHUNK_SLOTS	(0x3F)
 #define OTX2_TIM_MAX_CHUNK_SLOTS	(0x1FFE)
 #define OTX2_TIM_MIN_TMO_TKS		(256)
 
-- 
2.17.1


  parent reply	other threads:[~2021-02-25 12:23 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-25 12:23 [dpdk-dev] [PATCH 1/4] event/octeontx2: simplify timer bucket estimation pbhagavatula
2021-02-25 12:23 ` [dpdk-dev] [PATCH 2/4] event/octeontx2: optimize timer arm routine pbhagavatula
2021-02-25 12:23 ` pbhagavatula [this message]
2021-03-20 13:30   ` [dpdk-dev] [PATCH 3/4] event/octeontx2: reduce chunk pool memory usage Jerin Jacob
2021-02-25 12:23 ` [dpdk-dev] [PATCH 4/4] event/octeontx2: timer always use virtual counter pbhagavatula
2021-03-20 13:34   ` Jerin Jacob
2021-03-21  7:11     ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2021-03-21  8:49 ` [dpdk-dev] [PATCH v2 1/4] event/octeontx2: simplify timer bucket estimation pbhagavatula
2021-03-21  8:49   ` [dpdk-dev] [PATCH v2 2/4] event/octeontx2: optimize timer arm routine pbhagavatula
2021-03-21  8:49   ` [dpdk-dev] [PATCH v2 3/4] event/octeontx2: reduce chunk pool memory usage pbhagavatula
2021-03-21  8:49   ` [dpdk-dev] [PATCH v2 4/4] event/octeontx2: timer always use virtual counter pbhagavatula
2021-03-22 16:13     ` Jerin Jacob
2021-03-23  8:44   ` [dpdk-dev] [PATCH v3 1/4] event/octeontx2: simplify timer bucket estimation pbhagavatula
2021-03-23  8:44     ` [dpdk-dev] [PATCH v3 2/4] event/octeontx2: optimize timer arm routine pbhagavatula
2021-03-23  8:44     ` [dpdk-dev] [PATCH v3 3/4] event/octeontx2: reduce chunk pool memory usage pbhagavatula
2021-03-23  8:44     ` [dpdk-dev] [PATCH v3 4/4] event/octeontx2: timer always use virtual counter pbhagavatula
2021-03-24  7:44     ` [dpdk-dev] [PATCH v3 1/4] event/octeontx2: simplify timer bucket estimation Jerin Jacob

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210225122315.6350-3-pbhagavatula@marvell.com \
    --to=pbhagavatula@marvell.com \
    --cc=dev@dpdk.org \
    --cc=jerinj@marvell.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git