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h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ChI+yt8V0Gl1mMMTHjPeyIlN3h4hp6Dd5NAHjZ6KwIY=; b=OUD580zTq8/H4qyz+P5JohhY0kAu7iXKJDv0C6wt0BJfi3KjvvmDmlwRPrZgoLBDRmvpRU XWgKshcqT19gNqvoF1Nkfl+a61zolKVl9clcq2k5XXH7RcxyMbI2QXr5gDWDz1a9BA1K0i frWheHNDXhBJ572LRpNeJhMCLeHdyWCeHPBeSPKekCw8ja/GOkp6Nsw+sSZAiHtk0zNTQQ geuPFZBooJTMhUWQyEibF4iJGdFwUruw1vnfbab2cFaAPU/nSjBLOtGvrAssqv7OUphBrL BcFIHQciY68BdiwxszmYcYl42MLjAZ4ua1Y74KAWS3jB2SZKc2OmUEfWVUTH+w== Date: Tue, 4 Jun 2024 23:10:19 +0200 From: Erhard Furtner To: Yosry Ahmed Cc: Yu Zhao , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Johannes Weiner , Nhat Pham , Chengming Zhou , Sergey Senozhatsky , Minchan Kim Subject: Re: kswapd0: page allocation failure: order:0, mode:0x820(GFP_ATOMIC), nodemask=(null),cpuset=/,mems_allowed=0 (Kernel v6.5.9, 32bit ppc) Message-ID: <20240604231019.18e2f373@yea> In-Reply-To: References: <20240508202111.768b7a4d@yea> <20240515224524.1c8befbe@yea> <20240602200332.3e531ff1@yea> <20240604001304.5420284f@yea> <20240604134458.3ae4396a@yea> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-MBO-RS-ID: 602f3f677966dc7d20e X-MBO-RS-META: kfdi7qzihg3shght4uhztepa48pub5am X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 52553180024 X-Stat-Signature: rer4fmrps9aqesqzc4fnskd17f69f88d X-HE-Tag: 1717535439-636789 X-HE-Meta: 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 /xn3WD3B iEhz41eIChUJ6VOHXmiubkoDMyxml1A70dQWVShg4IjwIItzIfIJ5OpZIM5Bb9bFkSYQqsut/bbYD1m0XYqawxI//GyqdvIfJ25bpN2N66wwnP5Jlltl+qwVPxeEdRcjVeSzng5WeC4tsONG6J5k/5r72ZQEwtkWRhudiTENt8sncanWQfsKIcYnWOXoiqP8ZHWcAubzg2VT0kMeUfX506THwFIKvMH8h0qIZEv9VCB4THfQlUS9NxE7eFQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, 4 Jun 2024 11:01:39 -0700 Yosry Ahmed wrote: > How many CPUs does this machine have? I am wondering if 32 can be an > overkill for small machines, perhaps the number of pools should be > max(nr_cpus, 32)? This PowerMac G4 DP got 2 CPUs. Not much for a desktop machine by todays standards but some SoCs have less. ;) # lscpu Architecture: ppc CPU op-mode(s): 32-bit Byte Order: Big Endian CPU(s): 2 On-line CPU(s) list: 0,1 Model name: 7455, altivec supported Model: 3.3 (pvr 8001 0303) Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 2 BogoMIPS: 83.78 Caches (sum of all): L1d: 64 KiB (2 instances) L1i: 64 KiB (2 instances) L2: 512 KiB (2 instances) L3: 4 MiB (2 instances) Regards, Erhard