From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EFBA8C61DCB for ; Fri, 28 Aug 2026 16:09:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=EloB0katp8AvIPCuQbU503lG6mYrXa7AvQm9QMftF/Q=; b=2ZC67Ja6Awu5Les2Hqap2nnil+ Cg96jbkndN+7SBZtpRHiFYx5ukx+GahU4Bc9NasrhWP3V0CJfSxi+NbhmLKoJVr0uvqfmdnbOVEaK RyfYgPz4AYfF/XTQ2xSqzWwDEl2DXBI+XGu2/Ev3UazTLiqQ3TTh1xvLFBJZmDp0WNip2MN9KsMXT WuRBd9U5GRUEe1UrJ4/wXK+/cRheLzXfezKT8m+oZjjLx5NRTK8+KibCcmqSclK0St46/WXj5W7+d 6xz6KwQqD5jkXibzhgU21RNgpRWHR/nykF6zACtByAeAaTLu2ewKRMLBrrbK08xzzo/M3XpfXCNMH 1JLtY3SA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wzz98-00000006AvB-48Uq; Fri, 28 Aug 2026 16:09:38 +0000 Received: from smtprelay0010.hostedemail.com ([216.40.44.10] helo=relay.hostedemail.com) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wzz96-00000006Auo-2U9d for linux-arm-kernel@lists.infradead.org; Fri, 28 Aug 2026 16:09:38 +0000 Received: from omf07.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay10.hostedemail.com (Postfix) with ESMTP id D97DFC03F8; Fri, 28 Aug 2026 16:09:29 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf07.hostedemail.com (Postfix) with ESMTPA id 988AA2002E; Fri, 28 Aug 2026 16:09:20 +0000 (UTC) Date: Fri, 28 Aug 2026 12:10:10 -0400 From: Steven Rostedt To: Peter Zijlstra Cc: David Stevens , Catalin Marinas , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H . Peter Anvin" , Andrew Morton , Dave Chinner , Qi Zheng , Roman Gushchin , Muchun Song , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Valentin Schneider , K Prateek Nayak , Uladzislau Rezki , David Hildenbrand , Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Kees Cook , Sebastian Andrzej Siewior , Clark Williams , suleiman@google.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-rt-devel@lists.linux.dev, jstultz@google.com Subject: Re: [RFC 00/10] Reclaimable kernel stacks Message-ID: <20260828121010.47fa7713@gandalf.local.home> In-Reply-To: <20260828144500.GW776954@noisy.programming.kicks-ass.net> References: <20260827232948.2520558-1-stevensd@google.com> <20260828124758.GP687043@noisy.programming.kicks-ass.net> <20260828103328.633bbfbc@gandalf.local.home> <20260828143540.GV776954@noisy.programming.kicks-ass.net> <20260828144500.GW776954@noisy.programming.kicks-ass.net> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: 48z84x6eyt4hnsuag3zedkjkfm3baagp X-Rspamd-Server: rspamout08 X-Rspamd-Queue-Id: 988AA2002E X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX198HxFyXYgEZJwnf72i30sWt/lWTSWMtx0= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=goodmis.org; h=date:from:to:cc:subject:message-id:in-reply-to:references:mime-version:content-type:content-transfer-encoding; s=dkim1; bh=EloB0katp8AvIPCuQbU503lG6mYrXa7AvQm9QMftF/Q=; b=SUQWHdUrQzbFKVWGZ5xuskpOuRiSRULlG6ryJnBZGwRdZ5u67PBT5epIe0H7xg5SXNEX5TvwjgYAiKgBFn8ZVFZTo/UhBe7uCVkXSTXgl3qel4FHrisSpTHR0cXMEvTruijIo6t+0UY6KTNW3HgB/IH3lcx96mDtLDIYxSkl2wU= X-HE-Tag: 1787933360-956987 X-HE-Meta: U2FsdGVkX1/U5Q0ostoyRiukFyNqFJhukFmTfCLv7rXt7diB6hyl/rZhUovQsUbfRuY/ruuw+CzkC8ZVCbdE5m17xKy+P2Hv3jyfNk0S4gBULlux/YQTMMl9V3ucR2xXxNGvpPJmpCP7P0aDUB8ibU6MmqlECvOPKid5V1OOzQt6NM3cjLlOo9ZuIQpgB8dSi6tyspx69xpNnpLwgNIG3TDSRJvGO7iERa9ou6pry9qFlRoyhFt1aUgs2Vz/JVAzyifFmbQZTDKS6nRAwD3NlsUyrhMO5du3Oou8k5oL+5IF7ADACZKUrPjYxLA7y874Dbta0aVQfHT5D1YLKlytYenuQaXYN9bClOSio+1VJY0xX4vNPnTY50qYg771Vo4/ X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260828_090936_855517_DFF0BF80 X-CRM114-Status: GOOD ( 10.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 28 Aug 2026 16:45:00 +0200 Peter Zijlstra wrote: > I realized I actually have a Java thing, the kids have Minecraft, so I > booted that up and I found all of 108 threads. Which is still kinda > insane, but nowhere near the 1000s per app as claimed. Have you looked at how many threads Chome uses? $ ps -eLf|grep chrome | wc -l 930 Of course I probably have 900 tabs open :-p -- Steve