From 79509f82f62584e917fadda3bc9f7ce2741b1a42 Mon Sep 17 00:00:00 2001
From: Evgenii Baidakov <evgenii@nspcc.io>
Date: Tue, 17 Oct 2023 11:15:34 +0400
Subject: [PATCH] cache: Pre-allocated buffer for SDK client

Signed-off-by: Evgenii Baidakov <evgenii@nspcc.io>
---
 cmd/neofs-node/config.go    | 7 +++++++
 pkg/network/cache/client.go | 1 +
 pkg/network/cache/multi.go  | 2 ++
 3 files changed, 10 insertions(+)

diff --git a/cmd/neofs-node/config.go b/cmd/neofs-node/config.go
index b0d3c9b6ec0..25e82a94d27 100644
--- a/cmd/neofs-node/config.go
+++ b/cmd/neofs-node/config.go
@@ -545,11 +545,18 @@ func initCfg(appCfg *config.Config) *cfg {
 	)
 	fatalOnErr(err)
 
+	var buffers sync.Pool
+	buffers.New = func() any {
+		b := make([]byte, cache.DefaultBufferSize)
+		return &b
+	}
+
 	cacheOpts := cache.ClientCacheOpts{
 		DialTimeout:      apiclientconfig.DialTimeout(appCfg),
 		StreamTimeout:    apiclientconfig.StreamTimeout(appCfg),
 		AllowExternal:    apiclientconfig.AllowExternal(appCfg),
 		ReconnectTimeout: apiclientconfig.ReconnectTimeout(appCfg),
+		Buffers:          &buffers,
 	}
 	c.shared = shared{
 		key:            key,
diff --git a/pkg/network/cache/client.go b/pkg/network/cache/client.go
index 0f0d3f9cd16..8b3231e83d9 100644
--- a/pkg/network/cache/client.go
+++ b/pkg/network/cache/client.go
@@ -26,6 +26,7 @@ type (
 		ReconnectTimeout time.Duration
 		ResponseCallback func(client.ResponseMetaInfo) error
 		AllowExternal    bool
+		Buffers          *sync.Pool
 	}
 )
 
diff --git a/pkg/network/cache/multi.go b/pkg/network/cache/multi.go
index 8ad7ce03dea..db3b52b1620 100644
--- a/pkg/network/cache/multi.go
+++ b/pkg/network/cache/multi.go
@@ -58,6 +58,8 @@ func (x *multiClient) createForAddress(addr network.Address) (clientcore.Client,
 		prmDial client.PrmDial
 	)
 
+	prmInit.SetSignMessageBuffers(x.opts.Buffers)
+
 	prmDial.SetServerURI(addr.URIAddr())
 
 	if x.opts.DialTimeout > 0 {