The GV$SYSSTAT view helps you view the syslog metrics.
obclient> select CON_ID,CLASS,STAT_ID,NAME,VALUE,VALUE_TYPE from v$sysstat where class=128 and stat_id > 160000 and stat_id < 170000 and con_id=1;
+--------+-------+---------+-----------------------------------------------+-----------+------------+
| CON_ID | CLASS | STAT_ID | NAME | VALUE | VALUE_TYPE |
+--------+-------+---------+-----------------------------------------------+-----------+------------+
| 1 | 128 | 160001 | oblogger log bytes | 205153873 | SET_VALUE |
| 1 | 128 | 160002 | election log bytes | 482464 | SET_VALUE |
| 1 | 128 | 160003 | rootservice log bytes | 222306504 | SET_VALUE |
| 1 | 128 | 160004 | oblogger total log count | 418151 | SET_VALUE |
| 1 | 128 | 160005 | election total log count | 521 | SET_VALUE |
| 1 | 128 | 160006 | rootservice total log count | 1068461 | SET_VALUE |
| 1 | 128 | 160007 | async tiny log write count | 0 | SET_VALUE |
| 1 | 128 | 160008 | async normal log write count | 0 | SET_VALUE |
| 1 | 128 | 160009 | async large log write count | 0 | SET_VALUE |
| 1 | 128 | 160010 | async tiny log dropped count | 0 | SET_VALUE |
| 1 | 128 | 160011 | async normal log dropped count | 0 | SET_VALUE |
| 1 | 128 | 160012 | async large log dropped count | 0 | SET_VALUE |
| 1 | 128 | 160013 | async active tiny log count | 0 | SET_VALUE |
| 1 | 128 | 160014 | async active normal log count | 0 | SET_VALUE |
| 1 | 128 | 160015 | async active large log count | 0 | SET_VALUE |
| 1 | 128 | 160016 | async released tiny log count | 0 | SET_VALUE |
| 1 | 128 | 160017 | async released normal log count | 0 | SET_VALUE |
| 1 | 128 | 160018 | async released large log count | 0 | SET_VALUE |
| 1 | 128 | 160019 | async error log dropped count | 0 | SET_VALUE |
| 1 | 128 | 160020 | async warn log dropped count | 65398852 | SET_VALUE |
| 1 | 128 | 160021 | async info log dropped count | 3042983 | SET_VALUE |
| 1 | 128 | 160022 | async trace log dropped count | 1163 | SET_VALUE |
| 1 | 128 | 160023 | async debug log dropped count | 0 | SET_VALUE |
| 1 | 128 | 160024 | async log flush speed | 0 | SET_VALUE |
| 1 | 128 | 160025 | async generic log write count | 1475793 | SET_VALUE |
| 1 | 128 | 160026 | async user request log write count | 0 | SET_VALUE |
| 1 | 128 | 160027 | async data maintain log write count | 1 | SET_VALUE |
| 1 | 128 | 160028 | async root service log write count | 0 | SET_VALUE |
| 1 | 128 | 160029 | async schema log write count | 11339 | SET_VALUE |
| 1 | 128 | 160030 | async force allow log write count | 138931 | SET_VALUE |
| 1 | 128 | 160031 | async generic log dropped count | 68422128 | SET_VALUE |
| 1 | 128 | 160032 | async user request log dropped count | 0 | SET_VALUE |
| 1 | 128 | 160033 | async data maintain log dropped count | 0 | SET_VALUE |
| 1 | 128 | 160034 | async root service log dropped count | 0 | SET_VALUE |
| 1 | 128 | 160035 | async schema log dropped count | 20870 | SET_VALUE |
| 1 | 128 | 160036 | async force allow log dropped count | 0 | SET_VALUE |
| 1 | 128 | 160037 | async tiny log write count for error log | 0 | SET_VALUE |
| 1 | 128 | 160038 | async normal log write count for error log | 0 | SET_VALUE |
| 1 | 128 | 160039 | async large log write count for err/or log | 0 | SET_VALUE |
| 1 | 128 | 160040 | async tiny log dropped count for error log | 0 | SET_VALUE |
| 1 | 128 | 160041 | async normal log dropped count for error log | 0 | SET_VALUE |
| 1 | 128 | 160042 | async large log dropped count for error log | 0 | SET_VALUE |
| 1 | 128 | 160043 | async active tiny log count for error log | 0 | SET_VALUE |
| 1 | 128 | 160044 | async active normal log count for error log | 0 | SET_VALUE |
| 1 | 128 | 160045 | async active large log count for error log | 0 | SET_VALUE |
| 1 | 128 | 160046 | async released tiny log count for error log | 0 | SET_VALUE |
| 1 | 128 | 160047 | async released normal log count for error log | 0 | SET_VALUE |
| 1 | 128 | 160048 | async released large log count for error log | 0 | SET_VALUE |
+--------+-------+---------+-----------------------------------------------+-----------+------------+
48 rows in set (0.05 sec)