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charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.44.4 (3.44.4-2.fc36) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Mon, 2024-02-05 at 11:10 -0800, Chris Li wrote: >=20 >=20 > In our system, a really heavy swap load is rare and it means something > is already wrong. At that point the app's SLO is likely at risk, > regardless of long tail swap latency. It is already too late to > address it at the swap fault end. We need to address the source of the > problem which is swapping out too much. >=20 >=20 Could some usage scenarios put more pressure on swap than your usage scenario? Say system with limited RAM and rely on zswap? Tim