ChangeSet 1.1238, 2005/02/25 17:27:21+00:00,
rneugeba@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
added performance counters for hypercalls and exceptions
Signed-off-by: michael.fetterman@xxxxxxxxxxxx
arch/x86/x86_32/asm-offsets.c | 3 +++
arch/x86/x86_32/entry.S | 10 ++++++++--
common/perfc.c | 2 +-
include/xen/perfc_defn.h | 2 ++
4 files changed, 14 insertions(+), 3 deletions(-)
diff -Nru a/xen/arch/x86/x86_32/asm-offsets.c
b/xen/arch/x86/x86_32/asm-offsets.c
--- a/xen/arch/x86/x86_32/asm-offsets.c 2005-04-05 12:05:30 -04:00
+++ b/xen/arch/x86/x86_32/asm-offsets.c 2005-04-05 12:05:30 -04:00
@@ -68,4 +68,7 @@
BLANK();
DEFINE(FIXMAP_apic_base, fix_to_virt(FIX_APIC_BASE));
+
+ OFFSET(PERFC_hypercalls, struct perfcounter_t, hypercalls);
+ OFFSET(PERFC_exceptions, struct perfcounter_t, exceptions);
}
diff -Nru a/xen/arch/x86/x86_32/entry.S b/xen/arch/x86/x86_32/entry.S
--- a/xen/arch/x86/x86_32/entry.S 2005-04-05 12:05:30 -04:00
+++ b/xen/arch/x86/x86_32/entry.S 2005-04-05 12:05:30 -04:00
@@ -60,7 +60,7 @@
#include <asm/apicdef.h>
#include <asm/page.h>
#include <public/xen.h>
-
+
#define GET_CURRENT(reg) \
movl $STACK_SIZE-4, reg; \
orl %esp, reg; \
@@ -278,8 +278,11 @@
subl $4,%esp
SAVE_ALL(b)
sti
+#ifdef PERF_COUNTERS
+ lock incl SYMBOL_NAME(perfcounters)+PERFC_hypercalls(,%eax,4)
+#endif
GET_CURRENT(%ebx)
- andl $(NR_hypercalls-1),%eax
+ andl $(NR_hypercalls-1),%eax
call *SYMBOL_NAME(hypercall_table)(,%eax,4)
movl %eax,XREGS_eax(%esp) # save the return value
@@ -466,6 +469,9 @@
movw XREGS_entry_vector(%esp),%ax
movl %esp,%edx
pushl %edx # push the xen_regs pointer
+#ifdef PERF_COUNTERS
+ lock incl SYMBOL_NAME(perfcounters)+PERFC_exceptions(,%eax,4)
+#endif
GET_CURRENT(%ebx)
call *SYMBOL_NAME(exception_table)(,%eax,4)
addl $4,%esp
diff -Nru a/xen/common/perfc.c b/xen/common/perfc.c
--- a/xen/common/perfc.c 2005-04-05 12:05:30 -04:00
+++ b/xen/common/perfc.c 2005-04-05 12:05:30 -04:00
@@ -66,7 +66,7 @@
case TYPE_S_ARRAY:
for ( j = sum = 0; j < perfc_info[i].nr_elements; j++ )
sum += atomic_read(&counters[j]);
- printk("TOTAL[%10d]\n ", sum);
+ printk("TOTAL[%10d] ", sum);
for ( j = 0; j < perfc_info[i].nr_elements; j++ )
{
printk("A%02d[%10d] ", j, atomic_read(&counters[j]));
diff -Nru a/xen/include/xen/perfc_defn.h b/xen/include/xen/perfc_defn.h
--- a/xen/include/xen/perfc_defn.h 2005-04-05 12:05:30 -04:00
+++ b/xen/include/xen/perfc_defn.h 2005-04-05 12:05:30 -04:00
@@ -41,6 +41,8 @@
PERFCOUNTER_ARRAY( wpt_updates, "writable pt updates", PERFC_MAX_PT_UPDATES )
PERFCOUNTER_ARRAY( bpt_updates, "batched pt updates", PERFC_MAX_PT_UPDATES )
+PERFCOUNTER_ARRAY( hypercalls, "hypercalls", NR_hypercalls )
+PERFCOUNTER_ARRAY( exceptions, "exceptions", 32 ) /* XXX constant */
#define VMX_PERF_EXIT_REASON_SIZE 37
#define VMX_PERF_VECTOR_SIZE 0x20
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