not seeing dynamic library page-ins
not seeing dynamic library page-ins
- Subject: not seeing dynamic library page-ins
- From: Joel Reymont <email@hidden>
- Date: Fri, 30 Oct 2009 23:42:15 +0000
I'm tracking page-ins in dynamic libraries used by Firefox.
I'm on Snow Leopard and using these DTrace probes:
vminfo::vnode_pagein:pgpgin
{
printf("page-in\n");
}
fbt::vnode_pagein:entry
{
self->v_name = stringof(((vnode_t)arg0)->v_name);
printf("vnode name: %s\n", self->v_name);
}
I see the library being opened by the dynamic linker and
Firefox comes up just fine. Trouble is, I don't see any page-ins.
I thought this may be due to the Unified Buffer Cache but disabling
the cache on a given library while keeping the while open has no effect.
Where do the code pages come from and what am I missing?
Thanks, Joel
---
firefox for android!
http://wagerlabs.com
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