Hi,
One of my applications is spending around 90% of total execution time reading a
huge file using read system call. I though that I could improve the performance
of the application by increasing the page size for kernel heap. I know that I
can increase page size of application heap using ppgs
segvn is the generic vnode segment driver, the most heavily used
segment driver (typically) in a system. It manages vnode mappings
for various address space segments, including text, data heap
and stack segments, and is used for mmap/munmap operations.
I am not aware of any parameters that set (o
Hi,
I observed that one multi-threaded application is generating so many
cross-calls (xcalls) on my AMD multi-core machine. A snapshot of stack trace is
shown below. I think that this is because of "segvn" activity, i.e. unmapping
the page and generating cross-call activity to maintain MMU leve
libumem is a userland port of the kernel slab allocator
(kmem_cache_alloc and friends), which is described by the
following papers:
Jeff Bonwick,
The Slab Allocator: An Object-Caching Kernel Memory Allocator.
Proceedings of the Summer 1994 Usenix Conference.
Jeff Bonwick and Jonathan Ada
Hi,
I am able to understand how libmtmalloc works from the documentation of
libmtmalloc.c source file. However, I am unable to find proper documentation
for libumem. Could someone provide the key differences between libmtmalloc and
liumem, please? Please also provide me links to the documentatio
