fs/inode: add pre-allocated task files to avoid allocator access #11850
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xiaoxiang781216
approved these changes
Mar 6, 2024
Pre-allocated files to avoid allocator access during thread creation phase, For functional safety requirements, increase CONFIG_NFILE_DESCRIPTORS_PER_BLOCK could also avoid allocator access caused by the file descriptor exceeding the limit. For Task Termination, the time consumption will be reduced ~3us (Tricore TC397 300MHZ): 10.65(us) -> 7.35(us) NOTE: This commit will not waste of extra heap, just pre-allocates the list of files for task_group. Signed-off-by: chao an <anchao@lixiang.com>
xiaoxiang781216
approved these changes
Mar 7, 2024
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Summary
fs/inode: add pre-allocated task files to avoid allocator access
Pre-allocated files to avoid allocator access during thread creation
phase, For functional safety requirements, increase
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK could also avoid allocator access
caused by the file descriptor exceeding the limit.
For Task Termination, the time consumption will be reduced ~3us (Tricore TC397 300MHZ):
10.65(us) -> 7.35(us)
NOTE:
This commit will not waste of extra heap, just pre-allocates the list of files for task_group.
Signed-off-by: chao an anchao@lixiang.com
Impact
N/A
Testing
ci-check