- **assigned_to**: A V Mahesh (AVM) --> nobody
- **Blocker**: --> False
---
** [tickets:#1598] leap: PAYLOAD_BUF_SIZE value is suppose to be equal to
MDS_DIRECT_BUF_MAXSIZE**
**Status:** assigned
**Milestone:** future
**Created:** Tue Nov 17, 2015 07:00 AM UTC by A V Mahesh (AVM)
**Last Updated:** Tue Sep 20, 2016 05:48 PM UTC
**Owner:** nobody
The PAYLOAD_BUF_SIZE value is suppose to be equal to
MDS_DIRECT_BUF_MAXSIZE (65535 maximum packet size)-(56 MDS header) ,
but this was NOT changed as part of the patch `MDS: Performance improvement
[#654]` in release 4.5.FC,
because of the previous releases of Opensaf below 4.5.FC the value of MDS
MDTM_RECV_BUFFER_SIZE (mds_dt_tipc.c) was limited to (8000+MDS header )
, so to support in-service Upgrade to below 4.5.FC , this was NOT changed
in 4.5.FC.
Now from 4.7 to 4.6/4.5 releases , we can send message size of
MDS_DIRECT_BUF_MAXSIZE ((65535 maximum packet size)-(56 MDS header)) value
so for the current release it is limited PAYLOAD_BUF_SIZE 8000 can be
possibly adjusted
to MDS_DIRECT_BUF_MAXSIZE (65535 maximum packet size)-(56 MDS header).
For example : ( of course not as Static array , we may need to do malloc() )
-#define PAYLOAD_BUF_SIZE 8000 /* default size of packet_data bufrs */
+#define PAYLOAD_BUF_SIZE ((65535 / 100) * 91) /* default size of packet_data
bufrs */
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