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The PSI backend is based on Kernel PSI [1]. It monitors the memory allocation time with in a given time window. If the allocation time is more than the given threshold, Kernel signal the application to deliver the memory pressure events. The current thresholds are: LOW: 70ms out of 2 seconds for partial stall MEDIUM: 100ms out of 2 seconds for partial stall CRITICAL: 100ms out of 2 seconds for full stall [1] https://docs.kernel.org/accounting/psi.html
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright 2025 Red Hat, Inc.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __G_MEMORY_MONITOR_PSI_H__
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#define __G_MEMORY_MONITOR_PSI_H__
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#include "gmemorymonitorbase.h"
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#include <glib-object.h>
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G_BEGIN_DECLS
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#define G_TYPE_MEMORY_MONITOR_PSI (g_memory_monitor_psi_get_type ())
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G_DECLARE_FINAL_TYPE (GMemoryMonitorPsi, g_memory_monitor_psi, G, MEMORY_MONITOR_PSI, GMemoryMonitorBase)
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GIO_AVAILABLE_IN_2_86
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GType g_memory_monitor_psi_get_type (void);
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G_END_DECLS
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#endif /* __G_MEMORY_MONITOR_PSI_H__ */
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