[RFC PATCH] ceph: fix description of some mount options

[RFC PATCH] ceph: fix description of some mount options

[xiubli]

From: Xiubo Li <xiubli@redhat.com>

Based on the latest code, the default value for wsize/rsize is
64MB and the default value for the mount_timeout is 60 seconds.

Signed-off-by: Xiubo Li <xiubli@redhat.com>
---

Checked the history of the code, I am a little confused about the
default values for wsize/rsize, there never been 16MB as the default,
and for the mount_timeout, never seen 30 as default.

So did I miss something important about this ?


 Documentation/filesystems/ceph.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/filesystems/ceph.txt b/Documentation/filesystems/ceph.txt
index b19b6a03f91c..92ffc9b3b018 100644
--- a/Documentation/filesystems/ceph.txt
+++ b/Documentation/filesystems/ceph.txt
@@ -103,17 +103,17 @@ Mount Options
 	address its connection to the monitor originates from.
 
   wsize=X
-	Specify the maximum write size in bytes.  Default: 16 MB.
+	Specify the maximum write size in bytes.  Default: 64 MB.
 
   rsize=X
-	Specify the maximum read size in bytes.  Default: 16 MB.
+	Specify the maximum read size in bytes.  Default: 64 MB.
 
   rasize=X
 	Specify the maximum readahead size in bytes.  Default: 8 MB.
 
   mount_timeout=X
 	Specify the timeout value for mount (in seconds), in the case
-	of a non-responsive Ceph file system.  The default is 30
+	of a non-responsive Ceph file system.  The default is 60
 	seconds.
 
   caps_max=X
-- 
2.21.0

Re: [RFC PATCH] ceph: fix description of some mount options

[Jeff Layton]

On Tue, 2020-02-11 at 10:31 -0500, xiubli@redhat.com wrote:
> From: Xiubo Li <xiubli@redhat.com>
> 
> Based on the latest code, the default value for wsize/rsize is
> 64MB and the default value for the mount_timeout is 60 seconds.
> 
> Signed-off-by: Xiubo Li <xiubli@redhat.com>
> ---
> 
> Checked the history of the code, I am a little confused about the
> default values for wsize/rsize, there never been 16MB as the default,
> and for the mount_timeout, never seen 30 as default.
> 
> So did I miss something important about this ?
> 

It looks like the default rsize/wsize were 16M prior to 94e6992bb560b.
It then went to 32 and then 64 a little while afterward. I don't see
where the mount_timeout was ever 30s though.

Merged into testing branch since this seems obviously correct.

> 
>  Documentation/filesystems/ceph.txt | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/filesystems/ceph.txt b/Documentation/filesystems/ceph.txt
> index b19b6a03f91c..92ffc9b3b018 100644
> --- a/Documentation/filesystems/ceph.txt
> +++ b/Documentation/filesystems/ceph.txt
> @@ -103,17 +103,17 @@ Mount Options
>  	address its connection to the monitor originates from.
>  
>    wsize=X
> -	Specify the maximum write size in bytes.  Default: 16 MB.
> +	Specify the maximum write size in bytes.  Default: 64 MB.
>  
>    rsize=X
> -	Specify the maximum read size in bytes.  Default: 16 MB.
> +	Specify the maximum read size in bytes.  Default: 64 MB.
>  
>    rasize=X
>  	Specify the maximum readahead size in bytes.  Default: 8 MB.
>  
>    mount_timeout=X
>  	Specify the timeout value for mount (in seconds), in the case
> -	of a non-responsive Ceph file system.  The default is 30
> +	of a non-responsive Ceph file system.  The default is 60
>  	seconds.
>  
>    caps_max=X

-- 
Jeff Layton <jlayton@kernel.org>

Re: [RFC PATCH] ceph: fix description of some mount options

[Xiubo Li]

On 2020/2/12 0:48, Jeff Layton wrote:
> On Tue, 2020-02-11 at 10:31 -0500, xiubli@redhat.com wrote:
>> From: Xiubo Li <xiubli@redhat.com>
>>
>> Based on the latest code, the default value for wsize/rsize is
>> 64MB and the default value for the mount_timeout is 60 seconds.
>>
>> Signed-off-by: Xiubo Li <xiubli@redhat.com>
>> ---
>>
>> Checked the history of the code, I am a little confused about the
>> default values for wsize/rsize, there never been 16MB as the default,
>> and for the mount_timeout, never seen 30 as default.
>>
>> So did I miss something important about this ?
>>
> It looks like the default rsize/wsize were 16M prior to 94e6992bb560b.
> It then went to 32 and then 64 a little while afterward.

Yeah, it is.

Thanks,

BRs

>   I don't see
> where the mount_timeout was ever 30s though.
>
> Merged into testing branch since this seems obviously correct.
>
>>   Documentation/filesystems/ceph.txt | 6 +++---
>>   1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/Documentation/filesystems/ceph.txt b/Documentation/filesystems/ceph.txt
>> index b19b6a03f91c..92ffc9b3b018 100644
>> --- a/Documentation/filesystems/ceph.txt
>> +++ b/Documentation/filesystems/ceph.txt
>> @@ -103,17 +103,17 @@ Mount Options
>>   	address its connection to the monitor originates from.
>>   
>>     wsize=X
>> -	Specify the maximum write size in bytes.  Default: 16 MB.
>> +	Specify the maximum write size in bytes.  Default: 64 MB.
>>   
>>     rsize=X
>> -	Specify the maximum read size in bytes.  Default: 16 MB.
>> +	Specify the maximum read size in bytes.  Default: 64 MB.
>>   
>>     rasize=X
>>   	Specify the maximum readahead size in bytes.  Default: 8 MB.
>>   
>>     mount_timeout=X
>>   	Specify the timeout value for mount (in seconds), in the case
>> -	of a non-responsive Ceph file system.  The default is 30
>> +	of a non-responsive Ceph file system.  The default is 60
>>   	seconds.
>>   
>>     caps_max=X