"control file parallel write" wait event occurs too frequent on BLOB operations

Hello!

I would like to transfer BLOB data from one table to another in my Oracle APEX application. Oracle Database version is 19.9.0.0.201020.

Here is my code:

When I try to execute this code it takes too many time to get completed. I have found that some wait events occur when this code is executed.

Here is an information about wait events at moment about three minutes later from code execution start point.

And here is an information about wait events at moment about ten minutes later from code execution start point.

As you could see there are a lots of "control file parallel write" events occur. And performance is really poor.

The table where I insert BLOB data is defined as:

CREATE TABLE FILES

(

 ID_FILE      NUMBER                         NOT NULL,

  FILE_NAME    VARCHAR2(128 CHAR),

 CONTENT      BLOB                           NOT NULL,

 MIME_TYPE    VARCHAR2(128 CHAR),

 FILE_SIZE    NUMBER

)

LOB (CONTENT) STORE AS BASICFILE (

 TABLESPACE ASIO_NPI_LOB

 ENABLE     STORAGE IN ROW

 CHUNK      32768

 PCTVERSION 10

 NOCACHE

 NOLOGGING

     STORAGE   (

                 INITIAL         100M

                 NEXT            100M

                 MINEXTENTS      1

                 MAXEXTENTS      UNLIMITED

                 PCTINCREASE     0

                 BUFFER_POOL     DEFAULT

                ))

TABLESPACE ASIO_NPI

PCTUSED   0

PCTFREE   10

INITRANS  1

MAXTRANS  255

STORAGE   (

           INITIAL         64K

           NEXT            1M

           MINEXTENTS      1

           MAXEXTENTS      UNLIMITED

           PCTINCREASE     0

           BUFFER_POOL     DEFAULT

          )

LOGGING

NOCOMPRESS

NOCACHE

MONITORING;

And tablespace where the LOB segment placed is defined as:

CREATE TABLESPACE ASIO_NPI_LOB DATAFILE  '/u02/oradata/CPNDB/asio_npi_lob01.dbf' SIZE 100M AUTOEXTEND ON NEXT 10M MAXSIZE 25G NOLOGGING EXTENT MANAGEMENT LOCAL AUTOALLOCATE SEGMENT SPACE MANAGEMENT AUTO;

So my question is quite simple: how to decrease "control file parallel write" events occur?

Best regards and hope your help.