On Jun 19, 2007, at 12:20 PM, Ralf S. Engelschall wrote:
On Tue, Jun 19, 2007, Jeff Johnson wrote:
Getting mmap enabled is likely a large performance win.
Maybe, yes. I've now added the missing Autoconf glue AC_FUNC_MMAP for
checking whether the system supports a reasonable mmap(2). Let's see
what happens...
Profiled with -pg 4+ years ago, mmap was 20% faster than straight I/O
loops.
But yes, will be interesting to see what happens.
On the roadmap somewhere is sparse file support, reestablishing holes
in installed files precisely, a request from the linux ELF cabal.
73 de Jeff
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