[v5] x86/resctrl: Track llc_occupancy of RMIDs in limbo list

[PATCH v5 1/2] x86/resctrl: Rename pseudo_lock_event.h to trace.h

Posted by Haifeng Xu 1 year, 11 months ago

Now only pseudo-locking part uses tracepoints to do event tracking, but
other parts of resctrl may need new tracepoints. It is unnecessary to
create separate header files and define CREATE_TRACE_POINTS in different
c files which fragments the resctrl tracing.

Therefore, give the resctrl tracepoint header file a generic name to
support its use for tracepoints that are not specific to pseudo-locking.

No functional change.

Signed-off-by: Haifeng Xu <haifeng.xu@shopee.com>
Suggested-by: Reinette Chatre <reinette.chatre@intel.com>
---
 arch/x86/kernel/cpu/resctrl/pseudo_lock.c                   | 2 +-
 .../x86/kernel/cpu/resctrl/{pseudo_lock_event.h => trace.h} | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)
 rename arch/x86/kernel/cpu/resctrl/{pseudo_lock_event.h => trace.h} (88%)

diff --git a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
index 884b88e25141..492c8e28c4ce 100644
--- a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
+++ b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
@@ -31,7 +31,7 @@
 #include "internal.h"
 
 #define CREATE_TRACE_POINTS
-#include "pseudo_lock_event.h"
+#include "trace.h"
 
 /*
  * The bits needed to disable hardware prefetching varies based on the
diff --git a/arch/x86/kernel/cpu/resctrl/pseudo_lock_event.h b/arch/x86/kernel/cpu/resctrl/trace.h
similarity index 88%
rename from arch/x86/kernel/cpu/resctrl/pseudo_lock_event.h
rename to arch/x86/kernel/cpu/resctrl/trace.h
index 428ebbd4270b..ed5c66b8ab0b 100644
--- a/arch/x86/kernel/cpu/resctrl/pseudo_lock_event.h
+++ b/arch/x86/kernel/cpu/resctrl/trace.h
@@ -2,7 +2,7 @@
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM resctrl
 
-#if !defined(_TRACE_PSEUDO_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)
+#if !defined(_TRACE_RESCTRL_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_PSEUDO_LOCK_H
 
 #include <linux/tracepoint.h>
@@ -35,9 +35,9 @@ TRACE_EVENT(pseudo_lock_l3,
 	    TP_printk("hits=%llu miss=%llu",
 		      __entry->l3_hits, __entry->l3_miss));
 
-#endif /* _TRACE_PSEUDO_LOCK_H */
+#endif /* _TRACE_RESCTRL_H */
 
 #undef TRACE_INCLUDE_PATH
 #define TRACE_INCLUDE_PATH .
-#define TRACE_INCLUDE_FILE pseudo_lock_event
+#define TRACE_INCLUDE_FILE trace
 #include <trace/define_trace.h>
-- 
2.25.1

Re: [PATCH v5 1/2] x86/resctrl: Rename pseudo_lock_event.h to trace.h

Posted by Reinette Chatre 1 year, 11 months ago

Hi Haifeng,

On 3/7/2024 11:41 PM, Haifeng Xu wrote:
> Now only pseudo-locking part uses tracepoints to do event tracking, but
> other parts of resctrl may need new tracepoints. It is unnecessary to
> create separate header files and define CREATE_TRACE_POINTS in different
> c files which fragments the resctrl tracing.
> 
> Therefore, give the resctrl tracepoint header file a generic name to
> support its use for tracepoints that are not specific to pseudo-locking.
> 
> No functional change.
> 
> Signed-off-by: Haifeng Xu <haifeng.xu@shopee.com>
> Suggested-by: Reinette Chatre <reinette.chatre@intel.com>
> ---
>  arch/x86/kernel/cpu/resctrl/pseudo_lock.c                   | 2 +-
>  .../x86/kernel/cpu/resctrl/{pseudo_lock_event.h => trace.h} | 6 +++---
>  2 files changed, 4 insertions(+), 4 deletions(-)
>  rename arch/x86/kernel/cpu/resctrl/{pseudo_lock_event.h => trace.h} (88%)
> 
> diff --git a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
> index 884b88e25141..492c8e28c4ce 100644
> --- a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
> +++ b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
> @@ -31,7 +31,7 @@
>  #include "internal.h"
>  
>  #define CREATE_TRACE_POINTS
> -#include "pseudo_lock_event.h"
> +#include "trace.h"
>  
>  /*
>   * The bits needed to disable hardware prefetching varies based on the
> diff --git a/arch/x86/kernel/cpu/resctrl/pseudo_lock_event.h b/arch/x86/kernel/cpu/resctrl/trace.h
> similarity index 88%
> rename from arch/x86/kernel/cpu/resctrl/pseudo_lock_event.h
> rename to arch/x86/kernel/cpu/resctrl/trace.h
> index 428ebbd4270b..ed5c66b8ab0b 100644
> --- a/arch/x86/kernel/cpu/resctrl/pseudo_lock_event.h
> +++ b/arch/x86/kernel/cpu/resctrl/trace.h
> @@ -2,7 +2,7 @@
>  #undef TRACE_SYSTEM
>  #define TRACE_SYSTEM resctrl
>  
> -#if !defined(_TRACE_PSEUDO_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)
> +#if !defined(_TRACE_RESCTRL_H) || defined(TRACE_HEADER_MULTI_READ)
>  #define _TRACE_PSEUDO_LOCK_H

The above #define should match the new name also.

>  
>  #include <linux/tracepoint.h>
> @@ -35,9 +35,9 @@ TRACE_EVENT(pseudo_lock_l3,
>  	    TP_printk("hits=%llu miss=%llu",
>  		      __entry->l3_hits, __entry->l3_miss));
>  
> -#endif /* _TRACE_PSEUDO_LOCK_H */
> +#endif /* _TRACE_RESCTRL_H */
>  
>  #undef TRACE_INCLUDE_PATH
>  #define TRACE_INCLUDE_PATH .
> -#define TRACE_INCLUDE_FILE pseudo_lock_event
> +#define TRACE_INCLUDE_FILE trace
>  #include <trace/define_trace.h>

The rest looks good.

Thank you.

Reinette

Re: [PATCH v5 1/2] x86/resctrl: Rename pseudo_lock_event.h to trace.h

Posted by Haifeng Xu 1 year, 10 months ago


On 2024/3/14 06:46, Reinette Chatre wrote:
> Hi Haifeng,
> 
> On 3/7/2024 11:41 PM, Haifeng Xu wrote:
>> Now only pseudo-locking part uses tracepoints to do event tracking, but
>> other parts of resctrl may need new tracepoints. It is unnecessary to
>> create separate header files and define CREATE_TRACE_POINTS in different
>> c files which fragments the resctrl tracing.
>>
>> Therefore, give the resctrl tracepoint header file a generic name to
>> support its use for tracepoints that are not specific to pseudo-locking.
>>
>> No functional change.
>>
>> Signed-off-by: Haifeng Xu <haifeng.xu@shopee.com>
>> Suggested-by: Reinette Chatre <reinette.chatre@intel.com>
>> ---
>>  arch/x86/kernel/cpu/resctrl/pseudo_lock.c                   | 2 +-
>>  .../x86/kernel/cpu/resctrl/{pseudo_lock_event.h => trace.h} | 6 +++---
>>  2 files changed, 4 insertions(+), 4 deletions(-)
>>  rename arch/x86/kernel/cpu/resctrl/{pseudo_lock_event.h => trace.h} (88%)
>>
>> diff --git a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
>> index 884b88e25141..492c8e28c4ce 100644
>> --- a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
>> +++ b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c
>> @@ -31,7 +31,7 @@
>>  #include "internal.h"
>>  
>>  #define CREATE_TRACE_POINTS
>> -#include "pseudo_lock_event.h"
>> +#include "trace.h"
>>  
>>  /*
>>   * The bits needed to disable hardware prefetching varies based on the
>> diff --git a/arch/x86/kernel/cpu/resctrl/pseudo_lock_event.h b/arch/x86/kernel/cpu/resctrl/trace.h
>> similarity index 88%
>> rename from arch/x86/kernel/cpu/resctrl/pseudo_lock_event.h
>> rename to arch/x86/kernel/cpu/resctrl/trace.h
>> index 428ebbd4270b..ed5c66b8ab0b 100644
>> --- a/arch/x86/kernel/cpu/resctrl/pseudo_lock_event.h
>> +++ b/arch/x86/kernel/cpu/resctrl/trace.h
>> @@ -2,7 +2,7 @@
>>  #undef TRACE_SYSTEM
>>  #define TRACE_SYSTEM resctrl
>>  
>> -#if !defined(_TRACE_PSEUDO_LOCK_H) || defined(TRACE_HEADER_MULTI_READ)
>> +#if !defined(_TRACE_RESCTRL_H) || defined(TRACE_HEADER_MULTI_READ)
>>  #define _TRACE_PSEUDO_LOCK_H
> 
> The above #define should match the new name also.

Sorry, I forgot to replace it with 'RESCTRL' in this version.
Thanks for pointing that out!
> 
>>  
>>  #include <linux/tracepoint.h>
>> @@ -35,9 +35,9 @@ TRACE_EVENT(pseudo_lock_l3,
>>  	    TP_printk("hits=%llu miss=%llu",
>>  		      __entry->l3_hits, __entry->l3_miss));
>>  
>> -#endif /* _TRACE_PSEUDO_LOCK_H */
>> +#endif /* _TRACE_RESCTRL_H */
>>  
>>  #undef TRACE_INCLUDE_PATH
>>  #define TRACE_INCLUDE_PATH .
>> -#define TRACE_INCLUDE_FILE pseudo_lock_event
>> +#define TRACE_INCLUDE_FILE trace
>>  #include <trace/define_trace.h>
> 
> The rest looks good.
> 
> Thank you.
> 
> Reinette