From: Zhi Yong Wu
FS_IOC_GET_HEAT_INFO: return a struct containing the various
metrics collected in hot_freq_data structs, and also return a
calculated data temperature based on those metrics.
Optionally, retrieve the temperature from the hot data hash list
instead of recalculating it.
Signed
From: Zhi Yong Wu
This patch adds read/write code paths: include read_pages(),
do_writepages(), do_generic_file_read() and __blockdev_direct_IO()
to record heat information.
When real disk i/o for an inode is done, its own hot_inode_item will
be created or updated in the RB tree
From: Zhi Yong Wu
Register a shrinker to control the amount of memory that
is used in tracking hot regions. If we are throwing inodes
out of memory due to memory pressure, we most definitely are
going to need to reduce the amount of memory the tracking
code is using, even if it means losing
From: Zhi Yong Wu
The patchset is trying to introduce hot tracking function in
VFS layer, which will keep track of real disk I/O in memory.
By it, you will easily know more details about disk I/O, and
then detect where disk I/O hot spots are. Also, specific FS
can take use of it to do accurate
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
The patchset is trying to introduce hot tracking function in
VFS layer, which will keep track of real disk I/O in memory.
By it, you will easily know more details about disk I/O, and
then detect where disk I/O hot spots are. Also, specific FS
can take
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
This patch adds read/write code paths: include read_pages(),
do_writepages(), do_generic_file_read() and __blockdev_direct_IO()
to record heat information.
When real disk i/o for an inode is done, its own hot_inode_item will
be created or updated
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Register a shrinker to control the amount of memory that
is used in tracking hot regions. If we are throwing inodes
out of memory due to memory pressure, we most definitely are
going to need to reduce the amount of memory the tracking
code is using, even
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
FS_IOC_GET_HEAT_INFO: return a struct containing the various
metrics collected in hot_freq_data structs, and also return a
calculated data temperature based on those metrics.
Optionally, retrieve the temperature from the hot data hash list
instead
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Introduce a /proc interface hot-mem-high-thresh and
to cap the memory which is consumed by hot_inode_item
and hot_range_item, and they will be in the unit of
1M bytes.
Signed-off-by: Chandra Seetharaman sekha...@us.ibm.com
Signed-off-by: Zhi Yong Wu wu
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Add a /proc interface hot-update-interval under the dir
/proc/sys/fs/ in order to turn HOT_UPDATE_INTERVAL into
a tunable parameter.
Signed-off-by: Chandra Seetharaman sekha...@us.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
fs
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Add Documentation for VFS hot tracking feature
Signed-off-by: Chandra Seetharaman sekha...@us.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
Documentation/filesystems/00-INDEX | 2 +
Documentation/filesystems/hot_tracking.txt
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
This patch adds maintainer information for VFS hot tracking
into the MAINTAINERS file.
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Chandra Seetharaman sekha...@us.ibm.com
---
MAINTAINERS | 12
1 file changed, 12
From: Dave Chinner dchin...@redhat.com
Connect up the VFS hot tracking support so XFS filesystem
can make use of it.
Signed-off-by: Dave Chinner dchin...@redhat.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
fs/xfs/xfs_mount.h | 1 +
fs/xfs/xfs_super.c | 18 ++
2
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Introduce one new mount option '-o hot_track',
and add its parsing support.
Its usage looks like:
mount -o hot_track
mount -o nouser,hot_track
mount -o nouser,hot_track,loop
mount -o hot_track,nouser
Reviewed-by: David Sterba dste
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
This patch includes the basic data structure and functions needed for
VFS hot tracking.
It adds hot_inode_tree struct to keep track of frequently accessed
files, and is keyed by {inode, offset}. Trees contain hot_inode_items
representing those files
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Add a workqueue per superblock and a delayed_work
to run periodic work to update map info on each superblock.
Two arrays of map list are defined, one is for hot inode
items, and the other is for hot extent items.
The hot items in the RB-tree
CCed Andrew Morton
On Thu, Oct 31, 2013 at 8:52 PM, Zhi Yong Wu wrote:
> From: Zhi Yong Wu
>
> Signed-off-by: Zhi Yong Wu
> ---
> mm/page_alloc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> in
CCed Andrew Morton
On Thu, Oct 31, 2013 at 8:52 PM, Zhi Yong Wu wrote:
> From: Zhi Yong Wu
>
> Signed-off-by: Zhi Yong Wu
> ---
> arch/x86/mm/init.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
CCed Andrew Morton
On Thu, Oct 31, 2013 at 8:52 PM, Zhi Yong Wu zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
arch/x86/mm/init.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch
CCed Andrew Morton
On Thu, Oct 31, 2013 at 8:52 PM, Zhi Yong Wu zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm
From: Zhi Yong Wu
Signed-off-by: Zhi Yong Wu
---
arch/x86/mm/init.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 04664cd..64d860f 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -53,12 +53,12 @@ __ref void
From: Zhi Yong Wu
Signed-off-by: Zhi Yong Wu
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index dd886fa..3d94d0c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1711,7 +1711,7 @@ bool zone_watermark_ok_safe
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
arch/x86/mm/init.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 04664cd..64d860f 100644
--- a/arch/x86/mm/init.c
+++ b/arch
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index dd886fa..3d94d0c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
From: Zhi Yong Wu
Signed-off-by: Zhi Yong Wu
---
net/core/dev_addr_lists.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index 6cda4e2..ec40a84 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
From: Zhi Yong Wu
Signed-off-by: Zhi Yong Wu
---
net/core/iovec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/iovec.c b/net/core/iovec.c
index b77eeec..4cdb7c4 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -100,7 +100,7 @@ int memcpy_toiovecend(const
From: Zhi Yong Wu
drivers/net/vxlan.c: In function ‘vxlan_sock_add’:
drivers/net/vxlan.c:2298:11: warning: ‘sock’ may be used uninitialized in this
function [-Wmaybe-uninitialized]
drivers/net/vxlan.c:2275:17: note: ‘sock’ was declared here
LD drivers/net/built-in.o
Signed-off-by: Zhi
From: Zhi Yong Wu
Signed-off-by: Zhi Yong Wu
---
net/core/datagram.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/datagram.c b/net/core/datagram.c
index af814e7..a16ed7b 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -577,7 +577,7 @@ EXPORT_SYMBOL
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
net/core/datagram.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/datagram.c b/net/core/datagram.c
index af814e7..a16ed7b 100644
--- a/net/core/datagram.c
+++ b/net
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
drivers/net/vxlan.c: In function ‘vxlan_sock_add’:
drivers/net/vxlan.c:2298:11: warning: ‘sock’ may be used uninitialized in this
function [-Wmaybe-uninitialized]
drivers/net/vxlan.c:2275:17: note: ‘sock’ was declared here
LD drivers/net/built
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
net/core/iovec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/iovec.c b/net/core/iovec.c
index b77eeec..4cdb7c4 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
net/core/dev_addr_lists.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index 6cda4e2..ec40a84 100644
--- a/net/core
HI, Stephen
I saw it on Fedora 17 without latest kernel. Then what do you think
that it is appropriate to solve this problem? discard this patch? If
yes, i can also agree.
On Sat, Oct 26, 2013 at 10:48 PM, Stephen Hemminger
wrote:
> On Sat, 26 Oct 2013 15:06:04 +0800
> Zhi Yong Wu
On Fri, Oct 25, 2013 at 11:41 PM, Stephen Hemminger
wrote:
> On Fri, 25 Oct 2013 15:49:18 +0800
> Zhi Yong Wu wrote:
>
>> From: Zhi Yong Wu
>>
>> drivers/net/vxlan.c: In function ‘vxlan_sock_add’:
>> drivers/net/vxlan.c:2298:11: warning: ‘sock’ may be used u
On Fri, Oct 25, 2013 at 11:41 PM, Stephen Hemminger
step...@networkplumber.org wrote:
On Fri, 25 Oct 2013 15:49:18 +0800
Zhi Yong Wu zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
drivers/net/vxlan.c: In function ‘vxlan_sock_add’:
drivers/net/vxlan.c:2298:11: warning
Zhi Yong Wu zwu.ker...@gmail.com wrote:
On Fri, Oct 25, 2013 at 11:41 PM, Stephen Hemminger
step...@networkplumber.org wrote:
On Fri, 25 Oct 2013 15:49:18 +0800
Zhi Yong Wu zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
drivers/net/vxlan.c: In function
From: Zhi Yong Wu
drivers/net/vxlan.c: In function ‘vxlan_sock_add’:
drivers/net/vxlan.c:2298:11: warning: ‘sock’ may be used uninitialized in this
function [-Wmaybe-uninitialized]
drivers/net/vxlan.c:2275:17: note: ‘sock’ was declared here
LD drivers/net/built-in.o
Signed-off-by: Zhi
From: Zhi Yong Wu
Signed-off-by: Zhi Yong Wu
---
net/core/datagram.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/datagram.c b/net/core/datagram.c
index af814e7..a16ed7b 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -577,7 +577,7 @@ EXPORT_SYMBOL
From: Zhi Yong Wu
Signed-off-by: Zhi Yong Wu
---
net/core/iovec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/iovec.c b/net/core/iovec.c
index b77eeec..4cdb7c4 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -100,7 +100,7 @@ int memcpy_toiovecend(const
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
net/core/iovec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/iovec.c b/net/core/iovec.c
index b77eeec..4cdb7c4 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
drivers/net/vxlan.c: In function ‘vxlan_sock_add’:
drivers/net/vxlan.c:2298:11: warning: ‘sock’ may be used uninitialized in this
function [-Wmaybe-uninitialized]
drivers/net/vxlan.c:2275:17: note: ‘sock’ was declared here
LD drivers/net/built
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
net/core/datagram.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/datagram.c b/net/core/datagram.c
index af814e7..a16ed7b 100644
--- a/net/core/datagram.c
+++ b/net
On Tue, Sep 24, 2013 at 8:20 AM, Al Viro wrote:
> On Tue, Sep 17, 2013 at 06:17:45AM +0800, zwu.ker...@gmail.com wrote:
>> From: Zhi Yong Wu
>>
>> The patchset is trying to introduce hot tracking function in
>> VFS layer, which will keep track of real disk I
On Tue, Sep 24, 2013 at 8:20 AM, Al Viro v...@zeniv.linux.org.uk wrote:
On Tue, Sep 17, 2013 at 06:17:45AM +0800, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
The patchset is trying to introduce hot tracking function in
VFS layer, which will keep track of real disk
On Thu, Sep 5, 2013 at 9:12 AM, Davidlohr Bueso wrote:
> On Thu, 2013-09-05 at 08:37 +0800, Zhi Yong Wu wrote:
>> On Thu, Sep 5, 2013 at 7:59 AM, Davidlohr Bueso wrote:
>> > On Thu, 2013-09-05 at 01:22 +0800, Zhi Yong Wu wrote:
>> >> On Mon, Sep 2, 2013
On Thu, Sep 5, 2013 at 7:59 AM, Davidlohr Bueso wrote:
> On Thu, 2013-09-05 at 01:22 +0800, Zhi Yong Wu wrote:
>> On Mon, Sep 2, 2013 at 4:57 PM, Michel Lespinasse wrote:
>> > On Sun, Sep 1, 2013 at 11:30 PM, Zhi Yong Wu wrote:
>> >> In Tue, Aug 27, 2013
On Mon, Sep 2, 2013 at 4:57 PM, Michel Lespinasse wrote:
> On Sun, Sep 1, 2013 at 11:30 PM, Zhi Yong Wu wrote:
>> In Tue, Aug 27, 2013 at 6:01 AM, Michel Lespinasse wrote:
>>> On Fri, Aug 23, 2013 at 7:45 AM, wrote:
>>>> From: Zhi Yong Wu
>&g
On Mon, Sep 2, 2013 at 4:57 PM, Michel Lespinasse wal...@google.com wrote:
On Sun, Sep 1, 2013 at 11:30 PM, Zhi Yong Wu zwu.ker...@gmail.com wrote:
In Tue, Aug 27, 2013 at 6:01 AM, Michel Lespinasse wal...@google.com wrote:
On Fri, Aug 23, 2013 at 7:45 AM, zwu.ker...@gmail.com wrote:
From
On Thu, Sep 5, 2013 at 7:59 AM, Davidlohr Bueso davidl...@hp.com wrote:
On Thu, 2013-09-05 at 01:22 +0800, Zhi Yong Wu wrote:
On Mon, Sep 2, 2013 at 4:57 PM, Michel Lespinasse wal...@google.com wrote:
On Sun, Sep 1, 2013 at 11:30 PM, Zhi Yong Wu zwu.ker...@gmail.com wrote:
In Tue, Aug 27
On Thu, Sep 5, 2013 at 9:12 AM, Davidlohr Bueso davidl...@hp.com wrote:
On Thu, 2013-09-05 at 08:37 +0800, Zhi Yong Wu wrote:
On Thu, Sep 5, 2013 at 7:59 AM, Davidlohr Bueso davidl...@hp.com wrote:
On Thu, 2013-09-05 at 01:22 +0800, Zhi Yong Wu wrote:
On Mon, Sep 2, 2013 at 4:57 PM, Michel
On Tue, Sep 3, 2013 at 1:48 PM, Michel Lespinasse wrote:
> On Mon, Sep 2, 2013 at 9:45 PM, Zhi Yong Wu wrote:
>> On Mon, Sep 2, 2013 at 4:57 PM, Michel Lespinasse wrote:
>>> Thanks for the link - I now better understand where you are coming
>>> from with thes
On Tue, Sep 3, 2013 at 1:48 PM, Michel Lespinasse wrote:
> On Mon, Sep 2, 2013 at 9:45 PM, Zhi Yong Wu wrote:
>> On Mon, Sep 2, 2013 at 4:57 PM, Michel Lespinasse wrote:
>>> Thanks for the link - I now better understand where you are coming
>>> from with thes
On Tue, Sep 3, 2013 at 1:48 PM, Michel Lespinasse wal...@google.com wrote:
On Mon, Sep 2, 2013 at 9:45 PM, Zhi Yong Wu zwu.ker...@gmail.com wrote:
On Mon, Sep 2, 2013 at 4:57 PM, Michel Lespinasse wal...@google.com wrote:
Thanks for the link - I now better understand where you are coming
from
On Tue, Sep 3, 2013 at 1:48 PM, Michel Lespinasse wal...@google.com wrote:
On Mon, Sep 2, 2013 at 9:45 PM, Zhi Yong Wu zwu.ker...@gmail.com wrote:
On Mon, Sep 2, 2013 at 4:57 PM, Michel Lespinasse wal...@google.com wrote:
Thanks for the link - I now better understand where you are coming
from
On Mon, Sep 2, 2013 at 4:57 PM, Michel Lespinasse wrote:
> On Sun, Sep 1, 2013 at 11:30 PM, Zhi Yong Wu wrote:
>> In Tue, Aug 27, 2013 at 6:01 AM, Michel Lespinasse wrote:
>>> On Fri, Aug 23, 2013 at 7:45 AM, wrote:
>>>> From: Zhi Yong Wu
>&g
In Tue, Aug 27, 2013 at 6:01 AM, Michel Lespinasse wrote:
> On Fri, Aug 23, 2013 at 7:45 AM, wrote:
>> From: Zhi Yong Wu
>>
>> Signed-off-by: Zhi Yong Wu
>> ---
>> include/linux/rbtree_augmented.h | 3 ++-
>> lib/rbtree.c | 5 +++--
In Tue, Aug 27, 2013 at 6:01 AM, Michel Lespinasse wal...@google.com wrote:
On Fri, Aug 23, 2013 at 7:45 AM, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
include/linux/rbtree_augmented.h | 3 ++-
lib
On Mon, Sep 2, 2013 at 4:57 PM, Michel Lespinasse wal...@google.com wrote:
On Sun, Sep 1, 2013 at 11:30 PM, Zhi Yong Wu zwu.ker...@gmail.com wrote:
In Tue, Aug 27, 2013 at 6:01 AM, Michel Lespinasse wal...@google.com wrote:
On Fri, Aug 23, 2013 at 7:45 AM, zwu.ker...@gmail.com wrote:
From
> }
>
> - if (scsi_debug_guard > 1) {
> + if (scsi_debug_guard < 0 || scsi_debug_guard > 1) {
I don't think that it can fix that issue.
> printk(KERN_ERR "scsi_debug_init: guard must be 0 or 1\n");
> return -
HI,
If you'd like, you should draft one patch for this warning.
On Thu, Aug 22, 2013 at 9:02 AM, Joe Perches wrote:
> On Thu, 2013-08-22 at 08:44 +0800, zwu.ker...@gmail.com wrote:
>> From: Zhi Yong Wu
>>
>> Initialize csum variable to fix the build warning.
>
HI,
If you'd like, you should draft one patch for this warning.
On Thu, Aug 22, 2013 at 9:02 AM, Joe Perches j...@perches.com wrote:
On Thu, 2013-08-22 at 08:44 +0800, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Initialize csum variable to fix the build warning
that it can fix that issue.
printk(KERN_ERR scsi_debug_init: guard must be 0 or 1\n);
return -EINVAL;
}
--
Regards,
Zhi Yong Wu
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord
On Wed, Aug 14, 2013 at 1:35 PM, Dave Chinner wrote:
> On Wed, Jul 31, 2013 at 04:42:45PM +0800, zwu.ker...@gmail.com wrote:
>> From: Zhi Yong Wu
>>
>> It can take a long time to run log recovery operation because it is
>> single threaded and is bound by read latenc
On Wed, Aug 14, 2013 at 1:35 PM, Dave Chinner da...@fromorbit.com wrote:
On Wed, Jul 31, 2013 at 04:42:45PM +0800, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
It can take a long time to run log recovery operation because it is
single threaded and is bound by read
HI, xfs maintainers,
any comments?
On Wed, Jul 31, 2013 at 4:42 PM, wrote:
> From: Zhi Yong Wu
>
> It can take a long time to run log recovery operation because it is
> single threaded and is bound by read latency. We can find that it took
> most of the time to wait for the r
HI, xfs maintainers,
any comments?
On Wed, Jul 31, 2013 at 4:42 PM, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
It can take a long time to run log recovery operation because it is
single threaded and is bound by read latency. We can find that it took
most
On Wed, Jul 31, 2013 at 9:35 PM, Ben Myers wrote:
> Hey Zhi,
>
> On Wed, Jul 31, 2013 at 12:07:32PM +0800, Zhi Yong Wu wrote:
>> On Wed, Jul 31, 2013 at 7:11 AM, Dave Chinner wrote:
>> > On Tue, Jul 30, 2013 at 05:59:07PM +0800, zwu.ker...@gmail.com wrote:
On Wed, Jul 31, 2013 at 9:35 PM, Ben Myers b...@sgi.com wrote:
Hey Zhi,
On Wed, Jul 31, 2013 at 12:07:32PM +0800, Zhi Yong Wu wrote:
On Wed, Jul 31, 2013 at 7:11 AM, Dave Chinner da...@fromorbit.com wrote:
On Tue, Jul 30, 2013 at 05:59:07PM +0800, zwu.ker...@gmail.com wrote:
From: Zhi Yong
On Wed, Jul 31, 2013 at 7:11 AM, Dave Chinner wrote:
> On Tue, Jul 30, 2013 at 05:59:07PM +0800, zwu.ker...@gmail.com wrote:
>> From: Zhi Yong Wu
>>
>> It can take a long time to run log recovery operation because it is
>> single threaded and is bound by read latenc
On Tue, Jul 30, 2013 at 9:10 PM, Brian Foster wrote:
> On 07/30/2013 05:59 AM, zwu.ker...@gmail.com wrote:
>> From: Zhi Yong Wu
>>
>> It can take a long time to run log recovery operation because it is
>> single threaded and is bound by read latency. We ca
On Tue, Jul 30, 2013 at 9:10 PM, Brian Foster bfos...@redhat.com wrote:
On 07/30/2013 05:59 AM, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
It can take a long time to run log recovery operation because it is
single threaded and is bound by read latency. We can
On Wed, Jul 31, 2013 at 7:11 AM, Dave Chinner da...@fromorbit.com wrote:
On Tue, Jul 30, 2013 at 05:59:07PM +0800, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
It can take a long time to run log recovery operation because it is
single threaded and is bound by read
On Fri, Jul 26, 2013 at 7:37 PM, Dave Chinner wrote:
> On Fri, Jul 26, 2013 at 02:01:23PM +0800, Zhi Yong Wu wrote:
>> No, it still raised the same assertion as below:
>>
>> [ 521.715103] XFS: Assertion failed: !(bip->bli_item.li_flags &
>> XFS_LI_IN_AIL), file
On Fri, Jul 26, 2013 at 7:37 PM, Dave Chinner da...@fromorbit.com wrote:
On Fri, Jul 26, 2013 at 02:01:23PM +0800, Zhi Yong Wu wrote:
No, it still raised the same assertion as below:
[ 521.715103] XFS: Assertion failed: !(bip-bli_item.li_flags
XFS_LI_IN_AIL), file: fs/xfs/xfs_buf_item.c
On Mon, Jul 29, 2013 at 10:45 AM, Dave Chinner wrote:
> On Mon, Jul 29, 2013 at 09:38:11AM +0800, Zhi Yong Wu wrote:
>> By the way, how do you try the workload which has nothing but dirty
>> dquote objects?
>
> Create quota limits for non-existent users. That will allocate t
On Fri, Jul 26, 2013 at 7:35 PM, Dave Chinner wrote:
> On Fri, Jul 26, 2013 at 02:36:15PM +0800, Zhi Yong Wu wrote:
>> Dave,
>>
>> All comments are good to me, and will be applied to next version, thanks a
>> lot.
>>
>> On Fri, Jul 26, 2013 at 10:50 AM, D
On Fri, Jul 26, 2013 at 7:35 PM, Dave Chinner da...@fromorbit.com wrote:
On Fri, Jul 26, 2013 at 02:36:15PM +0800, Zhi Yong Wu wrote:
Dave,
All comments are good to me, and will be applied to next version, thanks a
lot.
On Fri, Jul 26, 2013 at 10:50 AM, Dave Chinner da...@fromorbit.com
On Mon, Jul 29, 2013 at 10:45 AM, Dave Chinner da...@fromorbit.com wrote:
On Mon, Jul 29, 2013 at 09:38:11AM +0800, Zhi Yong Wu wrote:
By the way, how do you try the workload which has nothing but dirty
dquote objects?
Create quota limits for non-existent users. That will allocate the
dquots
Dave,
All comments are good to me, and will be applied to next version, thanks a lot.
On Fri, Jul 26, 2013 at 10:50 AM, Dave Chinner wrote:
> On Thu, Jul 25, 2013 at 04:23:39PM +0800, zwu.ker...@gmail.com wrote:
>> From: Zhi Yong Wu
>>
>> It can take a long time to run l
800, zwu.ker...@gmail.com wrote:
>> From: Zhi Yong Wu
>>
>> When running the compilebench, one assertion failure was found.
>> This related line of code was introduced by commit 5f6bed76c0.
>>
>> commit 5f6bed76c0c85cb4d04885a5de00b629deee550b
>> Author: Da
));
xfs_buf_item_relse(bp);
}
} else
[root@f17 linux-2.6]#
On Fri, Jul 26, 2013 at 10:03 AM, Dave Chinner da...@fromorbit.com wrote:
On Thu, Jul 25, 2013 at 09:38:44PM +0800, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
When running the compilebench, one
Dave,
All comments are good to me, and will be applied to next version, thanks a lot.
On Fri, Jul 26, 2013 at 10:50 AM, Dave Chinner da...@fromorbit.com wrote:
On Thu, Jul 25, 2013 at 04:23:39PM +0800, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
It can take
HI, Al Viro.
I have incorporated all comments from all reviewers and waited for
so long time. If you have no comments, can you merge the patchset?
thanks.
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More
HI, Al Viro.
I have incorporated all comments from all reviewers and waited for
so long time. If you have no comments, can you merge the patchset?
thanks.
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More
Ping...
On Tue, May 14, 2013 at 8:59 AM, wrote:
> From: Zhi Yong Wu
>
> The patchset is trying to introduce hot tracking function in
> VFS layer, which will keep track of real disk I/O in memory.
> By it, you will easily know more details about disk I/O, and
> then detect
Ping...
On Tue, May 14, 2013 at 8:59 AM, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
The patchset is trying to introduce hot tracking function in
VFS layer, which will keep track of real disk I/O in memory.
By it, you will easily know more details about disk I/O
ping? any comments?
On Thu, Dec 20, 2012 at 10:43 PM, wrote:
> From: Zhi Yong Wu
>
> HI, guys,
>
> This patchset has been done scalability or performance tests
> by fs_mark, ffsb and compilebench.
> I have done the perf testing on Linux 3.7.0-rc8+ with Intel(R) C
ping? any comments?
On Thu, Dec 20, 2012 at 10:43 PM, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
HI, guys,
This patchset has been done scalability or performance tests
by fs_mark, ffsb and compilebench.
I have done the perf testing on Linux 3.7.0-rc8
On Fri, Jan 11, 2013 at 10:27 PM, David Sterba wrote:
> On Fri, Jan 11, 2013 at 03:38:31PM +0800, Zhi Yong Wu wrote:
>> On Thu, Jan 10, 2013 at 8:51 AM, David Sterba wrote:
>> > On Thu, Dec 20, 2012 at 10:43:22PM +0800, zwu.ker...@gmail.com wrote:
>> >> --- a/fs
lost in the shifts that
> I don't see the meaning of the resulting value and how can I interpet it
> if I watch it change over time. What are the expected weights of the
> number and time factors? There are more details in the documentation, but
> the big picture is blurred by talking implementati
the temperature?
You've been benchmarking this patchset, I'm sure you can write up a few
examples based on that.
+
+ return result;
+}
david
--
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Zhi Yong Wu
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On Fri, Jan 11, 2013 at 10:27 PM, David Sterba dste...@suse.cz wrote:
On Fri, Jan 11, 2013 at 03:38:31PM +0800, Zhi Yong Wu wrote:
On Thu, Jan 10, 2013 at 8:51 AM, David Sterba dste...@suse.cz wrote:
On Thu, Dec 20, 2012 at 10:43:22PM +0800, zwu.ker...@gmail.com wrote:
--- a/fs
,6 +139,12 @@ static int read_pages(struct address_space *mapping,
>> struct file *filp,
>> out:
>> blk_finish_plug();
>>
>> + /* Hot data tracking */
>> + hot_update_freqs(mapping->host,
>> + (loff_t)(list_entry(pages->prev, struct page, lru)->index)
>> + << PAGE_CACHE_SHIFT,
>> + (size_t)nr_pages * PAGE_CACHE_SIZE, 0);
>
> same comment here
Ditto. thanks.
>
>> +
>> return ret;
>> }
>
>
> david
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Please read the FAQ at http://www.tux.org/lkml/
_freq_data_update(struct hot_freq_data *freq_data, bool
>> write)
>> +{
>> + struct timespec cur_time = current_kernel_time();
>> +
>> + if (write) {
>> + freq_data->nr_writes += 1;
>
> The preferred style is
>
> freq_data->nr_writes++
OK, done.
>
>> + hot_rw_freq_calc(freq_data->last_write_time,
>> + cur_time,
>> + _data->avg_delta_writes);
>> + freq_data->last_write_time = cur_time;
>> + } else {
>> + freq_data->nr_reads += 1;
>
> (...)
>
>> + hot_rw_freq_calc(freq_data->last_read_time,
>> + freq_data->last_read_time,
>> + cur_time,
>> + _data->avg_delta_reads);
>> + freq_data->last_read_time = cur_time;
>> + }
>> +}
>> +
>
> david
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On Thu, Jan 10, 2013 at 8:48 AM, David Sterba wrote:
> On Thu, Dec 20, 2012 at 10:43:21PM +0800, zwu.ker...@gmail.com wrote:
>> From: Zhi Yong Wu
>> --- a/fs/hot_tracking.c
>> +++ b/fs/hot_tracking.c
>> @@ -107,3 +189,38 @@ err:
>> kmem_ca
On Thu, Jan 10, 2013 at 8:48 AM, David Sterba dste...@suse.cz wrote:
On Thu, Dec 20, 2012 at 10:43:21PM +0800, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
--- a/fs/hot_tracking.c
+++ b/fs/hot_tracking.c
@@ -107,3 +189,38 @@ err:
kmem_cache_destroy
-avg_delta_reads);
+ freq_data-last_read_time = cur_time;
+ }
+}
+
david
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Zhi Yong Wu
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(mapping-host,
+ (loff_t)(list_entry(pages-prev, struct page, lru)-index)
+ PAGE_CACHE_SHIFT,
+ (size_t)nr_pages * PAGE_CACHE_SIZE, 0);
same comment here
Ditto. thanks.
+
return ret;
}
david
--
Regards,
Zhi Yong Wu
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ile name written here is not wanted, so
> please drop it (and from .h too)
Done.
>
>> + *
>> + * Copyright (C) 2012 IBM Corp. All rights reserved.
>> + * Written by Zhi Yong Wu
>> + *
>> + * This program is free software; you can redistribute it and/or
&
, so
please drop it (and from .h too)
Done.
+ *
+ * Copyright (C) 2012 IBM Corp. All rights reserved.
+ * Written by Zhi Yong Wu wu...@linux.vnet.ibm.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2
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