Re: new function for libdevstat
Sergey A. Osokin writes: > I have rewritten devstat_compute_statistics(). > Please see the attachment. Add ``break'' in each ``case''. To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
Re: new function for libdevstat
Looks OK to me.
In message <[EMAIL PROTECTED]>, "Sergey A. Osokin" writes:
>
>--9amGYk9869ThD9tj
>Content-Type: text/plain; charset=us-ascii
>Content-Disposition: inline
>
>On Fri, May 11, 2001 at 07:35:50PM +0200, Poul-Henning Kamp wrote:
>> In message <[EMAIL PROTECTED]>, "Sergey A. Osokin" writes:
>>
>> >Hello.
>> >2 monthes ago I talked in -current about new features for libdevstat.
>> >Here is a new function, which calculate more statistics then
>> >existing compute_stats(). (compute_stats() calculate only average
>> >results, not read/write results).
>> >Please see my first step. Comments are welcome.
>>
>> I really don't think this is the way...
>>
>> I would far rather see:
>>
>> enum DEVSTAT_METRIC {
>> DEVSTAT_BYTES,
>> DEVSTAT_BYTES_READ,
>> DEVSTAT_BYTES_WRITE,
>> ...
>> }
>>
>> int
>> devstat_compute_statistics(
>> struct devstat *current,
>> struct devstat *previous,
>> enum DEVSTAT_METRIC metric,
>> double *destination);
>>
>> Since that can be extended with new metrics without changing
>> the ABI...
>
>OK. Please see attachment.
>Thanks.
>--
>
>Rgdz,/"\
>Sergey Osokin aka oZZ, \ / ASCII RIBBON CAMPAIGN
>[EMAIL PROTECTED]X AGAINST HTML MAIL
>http://freebsd.org.ru/~osa/ / \
>
>--9amGYk9869ThD9tj
>Content-Type: text/plain; charset=us-ascii
>Content-Disposition: attachment; filename="newstat2.c"
>
>enum DEVSTAT_METRIC {
> DEVSTAT_TOTAL_BYTES,
> DEVSTAT_TOTAL_BYTES_READ,
> DEVSTAT_TOTAL_BYTES_WRITE,
> DEVSTAT_TOTAL_TRANSFERS,
> DEVSTAT_TOTAL_TRANSFERS_READ,
> DEVSTAT_TOTAL_TRANSFERS_WRITE,
> DEVSTAT_TOTAL_TRANSFERS_OTHER,
> DEVSTAT_TOTAL_BLOCKS,
> DEVSTAT_TOTAL_BLOCKS_READ,
> DEVSTAT_TOTAL_BLOCKS_WRITE,
> DEVSTAT_KB_PER_TRANSFER,
> DEVSTAT_KB_PER_TRANSFER_READ,
> DEVSTAT_KB_PER_TRANSFER_WRITE,
> DEVSTAT_TRANSFERS_PER_SECOND,
> DEVSTAT_TRANSFERS_PER_SECOND_READ,
> DEVSTAT_TRANSFERS_PER_SECOND_WRITE,
> DEVSTAT_TRANSFERS_PER_SECOND_OTHER,
> DEVSTAT_MB_PER_SECOND,
> DEVSTAT_MB_PER_SECOND_READ,
> DEVSTAT_MB_PER_SECOND_WRITE,
> DEVSTAT_BLOCKS_PER_SECOND,
> DEVSTAT_BLOCKS_PER_SECOND_READ,
> DEVSTAT_BLOCKS_PER_SECOND_WRITE,
> DEVSTAT_MS_PER_TRANSACTION,
> DEVSTAT_MS_PER_TRANSACTION_READ,
> DEVSTAT_MS_PER_TRANSACTION_WRITE
>};
>
>int
>devstat_compute_statistics(struct devstat *current, struct devstat *previous,
> long double etime, enum DEVSTAT_METRIC metric,
> long double *destination)
>{
> u_int64_t totalbytes, totalbytes_read, totalbytes_write;
> u_int64_t totaltransfers, totaltransfers_read, totaltransfers_write,
>totaltransfers_other;
> u_int64_t totalblocks, totalblocks_read, totalblocks_write;
> char *func_name = "devstat_compute_statistics";
>
> /*
>* current is the only mandatory field.
>*/
>
> if (current == NULL) {
> sprintf(devstat_errbuf, "%s: current stats structure was NULL",
> func_name);
> return(-1);
> }
>
> totalbytes_read = current->bytes_read - ((previous) ? previous->bytes_read :
>0);
>
> if (metric == DEVSTAT_TOTAL_BYTES_READ) {
> *destination = totalbytes_read;
> return 0;
> }
>
> totalbytes_write = current->bytes_written - ((previous) ?
>previous->bytes_written : 0);
>
> if (metric == DEVSTAT_TOTAL_BYTES_WRITE) {
> *destination = totalbytes_write;
> return 0;
> }
>
>/*
> totalbytes = (current->bytes_written + current->bytes_read) -
> ((previous) ? (previous->bytes_written +
> previous->bytes_read) : 0);
>*/
>
> totalbytes = totalbytes_read + totalbytes_write;
>
> if (metric == DEVSTAT_TOTAL_BYTES) {
> *destination = totalbytes;
> return 0;
> }
>
> totaltransfers_read = current->num_reads - ((previous) ? (previous->num_reads)
>: 0);
>
> if (metric == DEVSTAT_TOTAL_TRANSFERS_READ) {
> *destination = totaltransfers_read;
> return 0;
> }
>
> totaltransfers_write = current->num_writes - ((previous) ?
>(previous->num_writes) : 0);
>
> if (metric == DEVSTAT_TOTAL_TRANSFERS_WRITE) {
> *destination = totaltransfers_write;
> return 0;
> }
>
> totaltransfers_other = current->num_other - ((previous) ?
>(previous->num_other) : 0);
>
> if (metric == DEVSTAT_TOTAL_TRANSFERS_OTHER) {
> *destination = totaltransfers_other;
> return 0;
> }
>/*
> totaltransfers = (current->num_reads +
> current->num_writes +
> current->num_other) -
>
Re: new function for libdevstat
On Sat, May 12, 2001 at 05:42:01PM +0400, Sergey A. Osokin wrote:
> On Fri, May 11, 2001 at 07:35:50PM +0200, Poul-Henning Kamp wrote:
> > In message <[EMAIL PROTECTED]>, "Sergey A. Osokin" writes:
> >
> > >Hello.
> > >2 monthes ago I talked in -current about new features for libdevstat.
> > >Here is a new function, which calculate more statistics then
> > >existing compute_stats(). (compute_stats() calculate only average
> > >results, not read/write results).
> > >Please see my first step. Comments are welcome.
> >
> > I really don't think this is the way...
> >
> > I would far rather see:
> >
> > enum DEVSTAT_METRIC {
> > DEVSTAT_BYTES,
> > DEVSTAT_BYTES_READ,
> > DEVSTAT_BYTES_WRITE,
> > ...
> > }
> >
> > int
> > devstat_compute_statistics(
> > struct devstat *current,
> > struct devstat *previous,
> > enum DEVSTAT_METRIC metric,
> > double *destination);
> >
> > Since that can be extended with new metrics without changing
> > the ABI...
>
> OK. Please see attachment.
I have rewritten devstat_compute_statistics().
Please see the attachment.
If you need a patch-version for libdevstat, just say about.
Thanks.
--
Rgdz,/"\
Sergey Osokin aka oZZ, \ / ASCII RIBBON CAMPAIGN
[EMAIL PROTECTED]X AGAINST HTML MAIL
http://freebsd.org.ru/~osa/ / \
enum DEVSTAT_METRIC {
DEVSTAT_TOTAL_BYTES = 1,
DEVSTAT_TOTAL_BYTES_READ,
DEVSTAT_TOTAL_BYTES_WRITE,
DEVSTAT_TOTAL_TRANSFERS,
DEVSTAT_TOTAL_TRANSFERS_READ,
DEVSTAT_TOTAL_TRANSFERS_WRITE,
DEVSTAT_TOTAL_TRANSFERS_OTHER,
DEVSTAT_TOTAL_BLOCKS,
DEVSTAT_TOTAL_BLOCKS_READ,
DEVSTAT_TOTAL_BLOCKS_WRITE,
DEVSTAT_KB_PER_TRANSFER,
DEVSTAT_KB_PER_TRANSFER_READ,
DEVSTAT_KB_PER_TRANSFER_WRITE,
DEVSTAT_TRANSFERS_PER_SECOND,
DEVSTAT_TRANSFERS_PER_SECOND_READ,
DEVSTAT_TRANSFERS_PER_SECOND_WRITE,
DEVSTAT_TRANSFERS_PER_SECOND_OTHER,
DEVSTAT_MB_PER_SECOND,
DEVSTAT_MB_PER_SECOND_READ,
DEVSTAT_MB_PER_SECOND_WRITE,
DEVSTAT_BLOCKS_PER_SECOND,
DEVSTAT_BLOCKS_PER_SECOND_READ,
DEVSTAT_BLOCKS_PER_SECOND_WRITE,
DEVSTAT_MS_PER_TRANSACTION,
DEVSTAT_MS_PER_TRANSACTION_READ,
DEVSTAT_MS_PER_TRANSACTION_WRITE
};
/*
* How to use this function?
*
* long double total_bytes;
*
* devstat_compute_statistics(&cur.dinfo->devices[di], &last.dinfo->devices[di],
* busy_seconds, DEVSTAT_TOTAL_BYTES, &total_bytes, 0);
*
* DEVSTAT_TOTAL_BYTES - is what you need.
* total_bytes - where you need.
*
* Wrapper for
* compute_stats(current, previous, etime, total_bytes,
* total_transfers, total_blocks,
* kb_per_transfer, transfers_per_second,
* mb_per_second, blocks_per_second,
* ms_per_transaction);
*
* looks like this:
*
* devstat_compute_statistics(current, previous, etime,
* DEVSTAT_TOTAL_BYTES, total_bytes,
* DEVSTAT_TOTAL_TRANSFERS, total_transfers,
* DEVSTAT_TOTAL_BLOCKS, total_blocks,
* DEVSTAT_TOTAL_TRANSFER, kb_per_transfer,
* DEVSTAT_TRANSFERS_PER_SECOND, transfers_per_second,
* DEVSTAT_MB_PER_SECOND, mb_per_second,
* DEVSTAT_BLOCKS_PER_SECOND, blocks_per_second,
* DEVSTAT_MS_PER_TRANSACTION, ms_per_transaction,
* 0);
*/
long double
devstat_compute_statistics(struct devstat *current, struct devstat *previous,
long double etime, ...)
{
u_int64_t totalbytes, totalbytes_read, totalbytes_write;
u_int64_t totaltransfers, totaltransfers_read, totaltransfers_write,
totaltransfers_other;
u_int64_t totalblocks, totalblocks_read, totalblocks_write;
char *func_name = "devstat_compute_statistics";
va_list ap;
enum DEVSTAT_METRIC metric;
long double *destination;
/*
* current is the only mandatory field.
*/
if (current == NULL) {
sprintf(devstat_errbuf, "%s: current stats structure was NULL",
func_name);
return(-1);
}
totalbytes_read = current->bytes_read - ((previous) ? (previous->bytes_read) :
0);
totalbytes_write = current->bytes_written - ((previous) ?
(previous->bytes_written) : 0);
totalbytes = totalbytes_read + totalbytes_write;
totaltransfers_read = current->num_reads - ((previous) ? (previous->num_reads)
: 0);
totaltransfers_write = current->num_writes - ((previous) ?
(previous->num_writes) : 0);
totaltransfers_other = current->num_other - ((previous) ?
(previous->num_other) : 0);
totaltransfers = totaltransfers_read + totaltransfers_write +
totaltransfers_o
Re: new function for libdevstat
On Fri, May 11, 2001 at 07:35:50PM +0200, Poul-Henning Kamp wrote:
> In message <[EMAIL PROTECTED]>, "Sergey A. Osokin" writes:
>
> >Hello.
> >2 monthes ago I talked in -current about new features for libdevstat.
> >Here is a new function, which calculate more statistics then
> >existing compute_stats(). (compute_stats() calculate only average
> >results, not read/write results).
> >Please see my first step. Comments are welcome.
>
> I really don't think this is the way...
>
> I would far rather see:
>
> enum DEVSTAT_METRIC {
> DEVSTAT_BYTES,
> DEVSTAT_BYTES_READ,
> DEVSTAT_BYTES_WRITE,
> ...
> }
>
> int
> devstat_compute_statistics(
> struct devstat *current,
> struct devstat *previous,
> enum DEVSTAT_METRIC metric,
> double *destination);
>
> Since that can be extended with new metrics without changing
> the ABI...
OK. Please see attachment.
Thanks.
--
Rgdz,/"\
Sergey Osokin aka oZZ, \ / ASCII RIBBON CAMPAIGN
[EMAIL PROTECTED]X AGAINST HTML MAIL
http://freebsd.org.ru/~osa/ / \
enum DEVSTAT_METRIC {
DEVSTAT_TOTAL_BYTES,
DEVSTAT_TOTAL_BYTES_READ,
DEVSTAT_TOTAL_BYTES_WRITE,
DEVSTAT_TOTAL_TRANSFERS,
DEVSTAT_TOTAL_TRANSFERS_READ,
DEVSTAT_TOTAL_TRANSFERS_WRITE,
DEVSTAT_TOTAL_TRANSFERS_OTHER,
DEVSTAT_TOTAL_BLOCKS,
DEVSTAT_TOTAL_BLOCKS_READ,
DEVSTAT_TOTAL_BLOCKS_WRITE,
DEVSTAT_KB_PER_TRANSFER,
DEVSTAT_KB_PER_TRANSFER_READ,
DEVSTAT_KB_PER_TRANSFER_WRITE,
DEVSTAT_TRANSFERS_PER_SECOND,
DEVSTAT_TRANSFERS_PER_SECOND_READ,
DEVSTAT_TRANSFERS_PER_SECOND_WRITE,
DEVSTAT_TRANSFERS_PER_SECOND_OTHER,
DEVSTAT_MB_PER_SECOND,
DEVSTAT_MB_PER_SECOND_READ,
DEVSTAT_MB_PER_SECOND_WRITE,
DEVSTAT_BLOCKS_PER_SECOND,
DEVSTAT_BLOCKS_PER_SECOND_READ,
DEVSTAT_BLOCKS_PER_SECOND_WRITE,
DEVSTAT_MS_PER_TRANSACTION,
DEVSTAT_MS_PER_TRANSACTION_READ,
DEVSTAT_MS_PER_TRANSACTION_WRITE
};
int
devstat_compute_statistics(struct devstat *current, struct devstat *previous,
long double etime, enum DEVSTAT_METRIC metric,
long double *destination)
{
u_int64_t totalbytes, totalbytes_read, totalbytes_write;
u_int64_t totaltransfers, totaltransfers_read, totaltransfers_write,
totaltransfers_other;
u_int64_t totalblocks, totalblocks_read, totalblocks_write;
char *func_name = "devstat_compute_statistics";
/*
* current is the only mandatory field.
*/
if (current == NULL) {
sprintf(devstat_errbuf, "%s: current stats structure was NULL",
func_name);
return(-1);
}
totalbytes_read = current->bytes_read - ((previous) ? previous->bytes_read :
0);
if (metric == DEVSTAT_TOTAL_BYTES_READ) {
*destination = totalbytes_read;
return 0;
}
totalbytes_write = current->bytes_written - ((previous) ?
previous->bytes_written : 0);
if (metric == DEVSTAT_TOTAL_BYTES_WRITE) {
*destination = totalbytes_write;
return 0;
}
/*
totalbytes = (current->bytes_written + current->bytes_read) -
((previous) ? (previous->bytes_written +
previous->bytes_read) : 0);
*/
totalbytes = totalbytes_read + totalbytes_write;
if (metric == DEVSTAT_TOTAL_BYTES) {
*destination = totalbytes;
return 0;
}
totaltransfers_read = current->num_reads - ((previous) ? (previous->num_reads)
: 0);
if (metric == DEVSTAT_TOTAL_TRANSFERS_READ) {
*destination = totaltransfers_read;
return 0;
}
totaltransfers_write = current->num_writes - ((previous) ?
(previous->num_writes) : 0);
if (metric == DEVSTAT_TOTAL_TRANSFERS_WRITE) {
*destination = totaltransfers_write;
return 0;
}
totaltransfers_other = current->num_other - ((previous) ?
(previous->num_other) : 0);
if (metric == DEVSTAT_TOTAL_TRANSFERS_OTHER) {
*destination = totaltransfers_other;
return 0;
}
/*
totaltransfers = (current->num_reads +
current->num_writes +
current->num_other) -
((previous) ?
(previous->num_reads +
previous->num_writes +
previous->num_other) : 0);
*/
totaltransfers = totaltransfers_read + totaltransfers_write +
totaltransfers_other;
if (metric == DEVSTAT_TOTAL_TRANSFERS) {
*destination =
Re: new function for libdevstat
In message <[EMAIL PROTECTED]>, "Sergey A. Osokin" writes:
>Hello.
>2 monthes ago I talked in -current about new features for libdevstat.
>Here is a new function, which calculate more statistics then
>existing compute_stats(). (compute_stats() calculate only average
>results, not read/write results).
>Please see my first step. Comments are welcome.
I really don't think this is the way...
I would far rather see:
enum DEVSTAT_METRIC {
DEVSTAT_BYTES,
DEVSTAT_BYTES_READ,
DEVSTAT_BYTES_WRITE,
...
}
int
devstat_compute_statistics(
struct devstat *current,
struct devstat *previous,
enum DEVSTAT_METRIC metric,
double *destination);
Since that can be extended with new metrics without changing
the ABI...
Poul-Henning
>--
>
>Rgdz,/"\
>Sergey Osokin aka oZZ, \ / ASCII RIBBON CAMPAIGN
>[EMAIL PROTECTED]X AGAINST HTML MAIL
>http://freebsd.org.ru/~osa/ / \
>
>--/04w6evG8XlLl3ft
>Content-Type: text/plain; charset=us-ascii
>Content-Disposition: attachment; filename="newstat.c"
>
>int
>devstat_compute_statistics(struct devstat *current, struct devstat *previous,
> long double etime,
> u_int64_t *total_bytes,
> u_int64_t *total_bytes_read,
> u_int64_t *total_bytes_write,
> u_int64_t *total_transfers,
> u_int64_t *total_transfers_read,
> u_int64_t *total_transfers_write,
> u_int64_t *total_transfers_other,
> u_int64_t *total_blocks,
> u_int64_t *total_blocks_read,
> u_int64_t *total_blocks_write,
> long double *kb_per_transfer,
> long double *kb_per_transfer_read,
> long double *kb_per_transfer_write,
> long double *transfers_per_second,
> long double *transfers_per_second_read,
> long double *transfers_per_second_write,
> long double *transfers_per_second_other,
> long double *mb_per_second,
> long double *mb_per_second_read,
> long double *mb_per_second_write,
> long double *blocks_per_second,
> long double *blocks_per_second_read,
> long double *blocks_per_second_write,
> long double *ms_per_transaction,
> long double *ms_per_transaction_read,
> long double *ms_per_transaction_write)
>
>{
> u_int64_t totalbytes, totalbytes_read, totalbytes_write;
> u_int64_t totaltransfers, totaltransfers_read, totaltransfers_write,
>totaltransfers_other;
> u_int64_t totalblocks, totalblocks_read, totalblocks_write;
> char *func_name = "devstat_compute_statistics";
>
> /*
>* current is the only mandatory field.
>*/
> if (current == NULL) {
> sprintf(devstat_errbuf, "%s: current stats structure was NULL",
> func_name);
> return(-1);
> }
>/*
> totalbytes = (current->bytes_written + current->bytes_read) -
> ((previous) ? (previous->bytes_written +
> previous->bytes_read) : 0);
>
> if (total_bytes)
> *total_bytes = totalbytes;
>*/
>
> totalbytes_read = current->bytes_read - ((previous) ? previous->bytes_read) :
>0);
>
> if (total_bytes_read)
> *total_bytes_read = totalbytes_read;
>
> totalbytes_write = current->bytes_written - ((previous) ?
>(previous->bytes_written) : 0);
>
> if (total_bytes_write)
> *total_bytes_write = totalbytes_write;
>
> totalbytes = totalbytes_read + totalbytes_write;
>
> if (total_bytes)
> *total_bytes = totalbytes;
>
>/*
> totaltransfers = (current->num_reads +
> current->num_writes +
> current->num_other) -
> ((previous) ?
>(previous->num_reads +
> previous->num_writes +
> previous->num_other) : 0);
>
> if (total_transfers)
> *total_transfers = totaltransfers;
>*/
>
> totaltransfers_read = current->num_reads - ((previous) ? (previous->num_reads)
>: 0);
>
> if (total_transfers_read)
> *total_transfers_read = totaltransfers_read;
>
> totaltransfers_write = current->num_writes - ((previous) ?
>(previous->num_writes) : 0);
>
> if (total_transfers_write)
> *total_transfers_write = totaltransfers_write;
>
> totaltransfers_other = current->num_other - ((previous) ?
>(previous->num_other) : 0);
>
> if (total_transfers_other)
> *total_transfers_other = totaltransfers_other;
>
> totaltransfers = totaltransfers_rea
new function for libdevstat
Hello.
2 monthes ago I talked in -current about new features for libdevstat.
Here is a new function, which calculate more statistics then
existing compute_stats(). (compute_stats() calculate only average
results, not read/write results).
Please see my first step. Comments are welcome.
--
Rgdz,/"\
Sergey Osokin aka oZZ, \ / ASCII RIBBON CAMPAIGN
[EMAIL PROTECTED]X AGAINST HTML MAIL
http://freebsd.org.ru/~osa/ / \
int
devstat_compute_statistics(struct devstat *current, struct devstat *previous,
long double etime,
u_int64_t *total_bytes,
u_int64_t *total_bytes_read,
u_int64_t *total_bytes_write,
u_int64_t *total_transfers,
u_int64_t *total_transfers_read,
u_int64_t *total_transfers_write,
u_int64_t *total_transfers_other,
u_int64_t *total_blocks,
u_int64_t *total_blocks_read,
u_int64_t *total_blocks_write,
long double *kb_per_transfer,
long double *kb_per_transfer_read,
long double *kb_per_transfer_write,
long double *transfers_per_second,
long double *transfers_per_second_read,
long double *transfers_per_second_write,
long double *transfers_per_second_other,
long double *mb_per_second,
long double *mb_per_second_read,
long double *mb_per_second_write,
long double *blocks_per_second,
long double *blocks_per_second_read,
long double *blocks_per_second_write,
long double *ms_per_transaction,
long double *ms_per_transaction_read,
long double *ms_per_transaction_write)
{
u_int64_t totalbytes, totalbytes_read, totalbytes_write;
u_int64_t totaltransfers, totaltransfers_read, totaltransfers_write,
totaltransfers_other;
u_int64_t totalblocks, totalblocks_read, totalblocks_write;
char *func_name = "devstat_compute_statistics";
/*
* current is the only mandatory field.
*/
if (current == NULL) {
sprintf(devstat_errbuf, "%s: current stats structure was NULL",
func_name);
return(-1);
}
/*
totalbytes = (current->bytes_written + current->bytes_read) -
((previous) ? (previous->bytes_written +
previous->bytes_read) : 0);
if (total_bytes)
*total_bytes = totalbytes;
*/
totalbytes_read = current->bytes_read - ((previous) ? previous->bytes_read) :
0);
if (total_bytes_read)
*total_bytes_read = totalbytes_read;
totalbytes_write = current->bytes_written - ((previous) ?
(previous->bytes_written) : 0);
if (total_bytes_write)
*total_bytes_write = totalbytes_write;
totalbytes = totalbytes_read + totalbytes_write;
if (total_bytes)
*total_bytes = totalbytes;
/*
totaltransfers = (current->num_reads +
current->num_writes +
current->num_other) -
((previous) ?
(previous->num_reads +
previous->num_writes +
previous->num_other) : 0);
if (total_transfers)
*total_transfers = totaltransfers;
*/
totaltransfers_read = current->num_reads - ((previous) ? (previous->num_reads)
: 0);
if (total_transfers_read)
*total_transfers_read = totaltransfers_read;
totaltransfers_write = current->num_writes - ((previous) ?
(previous->num_writes) : 0);
if (total_transfers_write)
*total_transfers_write = totaltransfers_write;
totaltransfers_other = current->num_other - ((previous) ?
(previous->num_other) : 0);
if (total_transfers_other)
*total_transfers_other = totaltransfers_other;
totaltransfers = totaltransfers_read + totaltransfers_write +
totaltransfers_other;
if (total_transfers)
*total_transfers = totaltransfers;
if (transfers_per_second) {
if (etime > 0.0) {
*transfers_per_second = totaltransfers;
*transfers_per_second /= etime;
} else
*transfers_per_second = 0.0;
}
if (transfers_per_second_read) {
if (etime > 0.0) {
*transfers_per_second_read = totaltransfers_read;
*transfers_per_second_read /= etime;
} else
*transfers_per_second_read = 0.0;
}
if (transfers_per_s
