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Purpose

Clarification about SAP semaphores representation.

Overview

In trace files or in transaction SM50 (process overview), semaphores are mentioned. How do you determine which semaphores control what?
see the following list dependent of the Kernel release

List

KERNEL RELEASE: 640

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SEM_PXA_KEY
SEM_REQ_QUEUE_DIA_KEY
SEM_REQ_QUEUE_READ_KEY
SEM_TM_ADM_KEY
SEM_COMM_ADM_KEY
SEM_ROLL_ADM_KEY
SEM_PAGING_KEY
SEM_NO_BUFFER
SEM_STAT_KEY
SEM_GW_REQ_IND
SEM_CALI_BUFFER
SEM_CCC_KEY
SEM_VB_KEY
SEM_PRES_BUF
SEM_SHM_ADM_AREA_KEY
SEM_DB_TBUFF
SEM_DB_SYNC
SEM_DB_TTAB
SEM_DB_SNTAB
SEM_DB_IREC
SEM_DB_FTAB
SEM_LOGFILE_KEY
SEM_REQ_QUEUE_KEY
SEM_DB_TBUFF_P
SEM_ENQ_REQ_KEY
SEM_ENQ_TABLE_KEY
SEM_SAPCOM_1
SEM_SAPCOM_2
SEM_VMS_FIXADR_KEY
SEM_DB_CUA_BUFFER
SEM_RSPO_ADMIN
SEM_EM_ADM
SEM_ES_KEY
SEM_MSBUF
SEM_DB_OBJ_BUFFER
SEM_ES_USER_KEY
SEM_SEM2MTX_KEY
SEM_CCMS_AS_MONI_KEY
SEM_EG_ADM
SEM_TEST_1
SEM_TEST_2
SEM_STAT_BUF
SEM_RSPO_CACHE
SEM_AUDIT_SHM
SEM_ASTAT_KEY
SEM_PROFILE
SEM_RSPO_RFC
SEM_ENQID_KEY
SEM_AB_VMIT
SEM_THRUN_ADM
SEM_ATRA_KEY
SEM_MPI_ADM
SEM_COV_KEY
SEM_ZDATE_TIMEINFO
SEM_DB_OTR_BUFFER
SEM_DB_ESM_BUFFER
SEM_RTM_KEY
SEM_JAVA_1
SEM_ABAP_SHO
SEM_JCONTROL_ADMIN
SEM_JCONTROL_SESSION
SEM_STATISTICS_ITS
SEM_SERVICES_ITS
SEM_UNUSED_64
SEM_UNUSED_65
SEM_UNUSED_66
SEM_UNUSED_67
SEM_CCMS_JMON_KEY
SEM_UNUSED_69
SEM_UNUSED_70
SEM_UNUSED_71
SEM_RSEC_EG_ACCESS

PXA-Semaphore
disp. dia queue key
disp. queue read key
workprozess tm_adm-table
workprozess comm_adm-table
roll administration
paging administration
Nummernkreispuffer
for statistic buffer
Gateway-Request-Semaphor
Fabrikkalender
TemSe Char-Code convert Buf.
for VB-startup
Presentation Buffer
shared memory admin area
table-buffer-semaphor
Buffer synchronisation
DB-table-description-Buffer
DB-short-nametab-Buffer
DB-initial-record-Buffer
DB-field-catalog-Buffer
for log files (e.g. batch)
Dispatcher Request Queue
Table Buffer, part.buffering
Enqueue Request/local Server
Enqueue Table
Sap-Communication BK/EDI
Sap-Communication BK/EDI
sem for VMS fix addresses
DB-CUA-Buffer
Spool Admin
Extended Memory Admin
Extended Segments Adm. (es)
Puffer fuer MsgServer-Liste
Export/Import buffer
Estended Segments User List
global mutex for sem2 / mtx
CCMS monitoring for appl.srv
Extended Global Memory (EG)
reserved for test programs
reserved for test programs
shared statistic buffer
rspo cache
basis audit shm protection
application statistics buf
profile parameter buf
spool async rfc calls
EnqId
virtual machine instr.trace
taskhandler runtime
protect atra memory
memory pipes adm. (MPI)
shbuf of coverage analyzer
WP-independ. time sync info
Online Text Repository Buf.
Export/Import Memory
shbuf of runtime monitor
sem 1 for java
ABAP shared objects
JControl Administration
unused
ITS Statistic records
ITS Service parameters
unused
unused
used by vmc admin in > 640
used by ext mem adm in >640
CCMS monitoring for J2EE srv
unused
unused
unused
Secure Storage access to EG

 

 

KERNEL RELEASE: 700 - 720 - 721 - 722

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SEM_PXA_KEY
SEM_REQ_QUEUE_DIA_KEY
SEM_REQ_QUEUE_NOWP_KEY
SEM_TM_ADM_KEY
SEM_COMM_ADM_KEY
SEM_ROLL_ADM_KEY
SEM_PAGING_KEY
SEM_NO_BUFFER
SEM_STAT_KEY
SEM_WP_ADM_KEY
SEM_CALI_BUFFER
SEM_CCC_KEY
SEM_VB_KEY
SEM_PRES_BUF
SEM_SHM_ADM_AREA_KEY
SEM_DB_TBUFF
SEM_DB_SYNC
SEM_DB_TTAB
SEM_DB_SNTAB
SEM_DB_IREC
SEM_DB_FTAB
SEM_LOGFILE_KEY
SEM_REQ_QUEUE_KEY
SEM_DB_TBUFF_P
SEM_ENQ_REQ_KEY
SEM_ENQ_TABLE_KEY
SEM_SAPCOM_1
SEM_SAPCOM_2
SEM_VMS_FIXADR_KEY
SEM_DB_CUA_BUFFER
SEM_RSPO_ADMIN
SEM_EM_ADM
SEM_ES_KEY
SEM_MSBUF
SEM_DB_OBJ_BUFFER
SEM_ES_USER_KEY
SEM_SEM2MTX_KEY
SEM_CCMS_AS_MONI_KEY
SEM_EG_ADM
SEM_TEST_1
SEM_TEST_2
SEM_STAT_BUF
SEM_RSPO_CACHE
SEM_AUDIT_SHM
SEM_ASTAT_KEY
SEM_PROFILE
SEM_RSPO_RFC
SEM_ENQID_KEY
SEM_AB_VMIT
SEM_THRUN_ADM
SEM_ATRA_KEY
SEM_MPI_ADM
SEM_COV_KEY
SEM_ZDATE_TIMEINFO
SEM_DB_OTR_BUFFER
SEM_DB_ESM_BUFFER
SEM_RTM_KEY
SEM_JAVA_1
SEM_ABAP_SHO
SEM_JCONTROL_ADMIN
SEM_JSTART_INSTANCE
SEM_STATISTICS_ITS
SEM_SERVICES_ITS
SEM_VB_REDISPATCH
SEM_ES2_ADM
SEM_VMC_ADM
SEM_EM2_ADM
SEM_CCMS_JMON_KEY
SEM_DBG_SESSION_BPS
SEM_EG2_ADM
SEM_FILE_ADM_KEY
SEM_RSEC_EG_ACCESS
SEM_HST_KEY

PXA-Semaphore
disp. dia queue key
disp. queue read key
workprozess tm_adm-table
workprozess comm_adm-table
roll administration
paging administration
Nummernkreispuffer
for statistic buffer
disp. wp_adm table
Fabrikkalender
TemSe Char-Code convert Buf.
for VB-startup
Presentation Buffer
shared memory admin area
table-buffer-semaphor
Buffer synchronisation
DB-table-description-Buffer
DB-short-nametab-Buffer
DB-initial-record-Buffer
DB-field-catalog-Buffer
for log files (e.g. batch)
Dispatcher Request Queue
Table Buffer, part.buffering
Enqueue Request/local Server
Enqueue Table
Sap-Communication BK/EDI
Sap-Communication BK/EDI
sem for VMS fix addresses
DB-CUA-Buffer
Spool Admin
Extended Memory Admin
Extended Segments Adm. (es)
Puffer fuer MsgServer-Liste
Export/Import buffer
Estended Segments User List
global mutex for sem2 / mtx
CCMS monitoring for appl.srv
Extended Global Memory (EG)
reserved for test programs
reserved for test programs
shared statistic buffer
rspo cache
basis audit shm protection
application statistics buf
profile parameter buf
spool async rfc calls
EnqId
virtual machine instr.trace
taskhandler runtime
protect atra memory
memory pipes adm. (MPI)
shbuf of coverage analyzer
WP-independ. time sync info
Online Text Repository Buf.
Export/Import Memory
shbuf of runtime monitor
sem 1 for java
ABAP shared objects
JControl Administration
JStart instance active
ITS Statistic records
ITS Service parameters
update redispatch
ext. segment administration
vmc administration
ext. memory administration
CCMS monitoring for J2EE srv
ABAP-Debugger: SessionBrkPts
ext. global memory admin
file table (VMC)
Secure Storage access to EG
ABAP Hot Spot Trace

 

 

KERNEL RELEASE: 740 - 741 - 742 - 745

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SEM_PXA_KEY
SEM_DB_ADM
SEM_DB_SHM
SEM_TM_ADM_KEY
SEM_COMM_ADM_KEY
SEM_DB_TBI
SEM_PAGING_KEY
SEM_NO_BUFFER
SEM_STAT_KEY
SEM_WP_ADM_KEY
SEM_CALI_BUFFER
SEM_CCC_KEY
SEM_VB_KEY
SEM_PRES_BUF
SEM_SHM_ADM_AREA_KEY
SEM_DB_TBUFF
SEM_DB_SYNC
SEM_DB_TTAB
SEM_DB_SNTAB
SEM_DB_IREC
SEM_DB_FTAB
SEM_LOGFILE_KEY
SEM_DB_XTYPMAP
SEM_DB_TBUFF_P
SEM_ENQ_REQ_KEY
SEM_ENQ_TABLE_KEY
SEM_SAPCOM_1
SEM_SAPCOM_2
SEM_VMS_FIXADR_KEY
SEM_DB_CUA_BUFFER
SEM_RSPO_ADMIN
SEM_EM_ADM
SEM_ES_KEY
SEM_MSBUF
SEM_DB_OBJ_BUFFER
SEM_ES_USER_KEY
SEM_SEM2MTX_KEY
SEM_CCMS_AS_MONI_KEY
SEM_EG_ADM
SEM_TEST_1
SEM_TEST_2
SEM_STAT_BUF
SEM_RSPO_CACHE
SEM_AUDIT_SHM
SEM_ASTAT_KEY
SEM_PROFILE
SEM_RSPO_RFC
SEM_ENQID_KEY
SEM_AB_VMIT
SEM_THRUN_ADM
SEM_ATRA_KEY
SEM_MPI_ADM
SEM_COV_KEY
SEM_ZDATE_TIMEINFO
SEM_DB_OTR_BUFFER
SEM_DB_ESM_BUFFER
SEM_RTM_KEY
SEM_DB_STRING
SEM_ABAP_SHO
SEM_JCONTROL_ADMIN
SEM_JSTART_INSTANCE
SEM_STATISTICS_ITS
SEM_SERVICES_ITS
SEM_SPOOL_TOKEN_KEY
SEM_ES2_ADM
SEM_VMC_ADM
SEM_EM2_ADM
SEM_CCMS_JMON_KEY
SEM_DBG_SESSION_BPS
SEM_EG2_ADM
SEM_FILE_ADM_KEY
SEM_RSEC_EG_ACCESS
SEM_HST_KEY
SEM_PROCMEM_ADM
SEM_RQ_Q_ADM
SEM_RQ_Q_HIGH_DISP_QUEUE
SEM_RQ_Q_NORM_DISP_QUEUE
SEM_RQ_Q_LOW_DISP_QUEUE

PXA-Semaphore
DB TBI admin semaphore
DB TBI shared memory
workprozess tm_adm-table
workprozess comm_adm-table
DB TBI new table buffer
paging administration
Nummernkreispuffer
for statistic buffer
disp. wp_adm table
Fabrikkalender
TemSe Char-Code convert Buf.
for VB-startup
Presentation Buffer
shared memory admin area
table-buffer-semaphor
Buffer synchronisation
DB-table-description-Buffer
DB-short-nametab-Buffer
DB-initial-record-Buffer
DB-field-catalog-Buffer
for log files (e.g. batch)
DB TBI xtyp map
Table Buffer, part.buffering
Enqueue Request/local Server
Enqueue Table
Sap-Communication BK/EDI
Sap-Communication BK/EDI
sem for VMS fix addresses
DB-CUA-Buffer
Spool Admin
Extended Memory Admin
Extended Segments Adm. (es)
Puffer fuer MsgServer-Liste
Export/Import buffer
Estended Segments User List
global mutex for sem2 / mtx
CCMS monitoring for appl.srv
Extended Global Memory (EG)
reserved for test programs
reserved for test programs
shared statistic buffer
rspo cache
basis audit shm protection
application statistics buf
profile parameter buf
spool async rfc calls
EnqId
virtual machine instr.trace
taskhandler runtime
protect atra memory
memory pipes adm. (MPI)
shbuf of coverage analyzer
WP-independ. time sync info
Online Text Repository Buf.
Export/Import Memory
shbuf of runtime monitor
DB TBI string manager
ABAP shared objects
JControl Administration
JStart instance active
ITS Statistic records
ITS Service parameters
Spool Token
ext. segment administration
vmc administration
ext. memory administration
CCMS monitoring for J2EE srv
ABAP-Debugger: SessionBrkPts
ext. global memory admin
file table (VMC)
Secure Storage access to EG
ABAP Hot Spot Trace
Process Local (PROC) Memory
request queue adm
for high prio disp queue
for normal prio disp queue
for low prio disp queue

 

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