Subj : [$] A parallel path for GPU restore in CRIU
To   : All
From : LWN.net
Date : Tue Jun 17 2025 19:15:07

[$] A parallel path for GPU restore in CRIU

Date:
Tue, 17 Jun 2025 18:02:13 +0000

Description:
The fundamental concept of checkpoint/restore is elegant: capture a
process's state and resurrect it later, perhaps elsewhere. Checkpointing
meticulously records a process's memory, open files, CPU state, and more into 
a
snapshot. Restoration then reconstructs the process from this state. This
established technique faces new challenges with GPU-accelerated applications,
where low-latency restoration is crucial for fault
tolerance , live migration, and
fast startups. Recently, the restore process for AMD GPUs has been redesigned 
to
eliminate substantial bottlenecks.

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Link to news story:
https://lwn.net/Articles/1024747/


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