From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from server4.hayhost.am (server4.hayhost.am [2.56.206.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BFCA7224AEB for ; Mon, 7 Apr 2025 09:00:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=2.56.206.6 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744016443; cv=none; b=LuS5ffNWcNSE6dAVLP8ApANBkBHUSsQd/5VAMqoAVscmi0Ug6UBdoV6XkgOfHEhNukhV3JV+N/M/DUGFGXbwDlSJTDDRerSD/hS7yE1/vH3cbK247yCqTnlhED1zH9qUNPoxZSYQCDFzeOzxmhHPcgXkAGDxz9MrU+DWDbFwIo4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744016443; c=relaxed/simple; bh=jNMFcGjZLIcyutmB9liZXrs9rJ1lCzkI0lvQN9KoIYQ=; h=MIME-Version:Date:From:To:Cc:Subject:In-Reply-To:References: Message-ID:Content-Type; b=llFwo5ci4sWa4PzJy0mVEkh9xo7P7fY+HqkpSQ2svior6wKqUVDAnrM29v/w59fYiGIG/MUzTsvoA6IzkRVK0wXjroAl85KJjZSYxym1j7vbEUfdcXEdIJFQjNCTBCWB4jzoPhqr8GzZoCNZXLs2PWnarhK3x9TKVT3n4I8O6FM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=beldev.am; spf=pass smtp.mailfrom=beldev.am; dkim=pass (2048-bit key) header.d=beldev.am header.i=@beldev.am header.b=NBI53TGT; arc=none smtp.client-ip=2.56.206.6 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=beldev.am Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=beldev.am Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=beldev.am header.i=@beldev.am header.b="NBI53TGT" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=beldev.am; s=default; h=Content-Transfer-Encoding:Content-Type:Message-ID:References: In-Reply-To:Subject:Cc:To:From:Date:MIME-Version:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=ljSyNAuYGohSbshxTS9XTcjO7JEBGhx1+FyVdogr/qQ=; b=NBI53TGTTf/WaZ2EhQFah7duOX pIBrDiFkuHoMKvVROddQ1q8JlX/auH8WvCzBehZsipfkBVBUq0uYUMnqa7DkLhmN37VhtVRQVPNCy wKfCOYKgLiQLuGrxyV6Zshs8d5EBuBo0KjA3ZKH4VK378VTcYEpJKXz1l+MPGFuYIqElqS4/iczV3 C3EaeTXMoElHoTzrkBK6ZudftOSkXV0nrf1w6rNGZaL+TrOE8ES5xlw+yUR7JBqia8wSAY/1MMR4X p5G3nDz8TokieZjatKg1/LSc0AIts2doEI8pzkEbRHtLss8T+L4R+CiC8buwz8/35m7L3Oz+43DID SpQAvddQ==; Received: from [::1] (port=27272 helo=server4.hayhost.am) by server4.hayhost.am with esmtpa (Exim 4.98.1) (envelope-from ) id 1u1iLO-000000000F3-1gIu; Mon, 07 Apr 2025 13:00:38 +0400 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Mon, 07 Apr 2025 13:00:36 +0400 From: Igor Belousov To: vitaly.wool@konsulko.se Cc: Johannes Weiner , linux-mm@kvack.org, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, Nhat Pham , Shakeel Butt Subject: Re: [PATCH v2] mm: add zblock allocator In-Reply-To: <0dbbbe9d17ed489d4a7dbe12026fc6fd@beldev.am> References: <1743810988579.7.125720@webmail-backend-production-7b88b644bb-5mmj8> <0dbbbe9d17ed489d4a7dbe12026fc6fd@beldev.am> User-Agent: Roundcube Webmail/1.6.9 Message-ID: X-Sender: igor.b@beldev.am Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server4.hayhost.am X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - beldev.am X-Get-Message-Sender-Via: server4.hayhost.am: authenticated_id: igor.b@beldev.am X-Authenticated-Sender: server4.hayhost.am: igor.b@beldev.am >>> Do you have zswap/zswapped meminfo metrics from these tests? >> Yep, and those look somewhat similar: >> - zblock: >> Zswap: 234128 kB >> Zswapped: 733216 kB >> - zsmalloc: >> Zswap: 286080 kB >> Zswapped: 774688 kB > > I tested the kernel build on a 4-core virtual machine with allocated 4 > GB RAM running on a Ryzen 9. > > The results are the following: [...] Now what's funny is that when I tried to compare how 32 threaded build would behave on a 8-core VM I couldn't do it because it OOMs with zsmalloc as zswap backend. With zblock it doesn't, though, and the results are: real 12m14.012s user 39m37.777s sys 14m6.923s Zswap: 440148 kB Zswapped: 924452 kB zswpin 594812 zswpout 2802454 zswpwb 10878 /Igor