From patchwork Mon Jun 14 07:49:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Tzvetomir Stoyanov (VMware)" X-Patchwork-Id: 12318255 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4DEE1C48BE6 for ; Mon, 14 Jun 2021 07:51:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 33AE161289 for ; Mon, 14 Jun 2021 07:51:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232616AbhFNHyA (ORCPT ); Mon, 14 Jun 2021 03:54:00 -0400 Received: from mail-ed1-f52.google.com ([209.85.208.52]:45591 "EHLO mail-ed1-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232608AbhFNHx7 (ORCPT ); Mon, 14 Jun 2021 03:53:59 -0400 Received: by mail-ed1-f52.google.com with SMTP id r7so30788989edv.12 for ; Mon, 14 Jun 2021 00:51:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=gtQ5F8jrQUF2N6tOvDi45fySOa/hLLTaZHUpfsjugYM=; b=PzwVEsyYiZssY+5rqGm4dmN1/OG8dtNotk+6tdrBKlNjmXmHQw7duFDkWzOcD+5frK cRqihW/tvlFLsPGWzfnoUYr+7EDAJkROfsr2OJ678l8hEGskDNeJOZ0vk217yFF/TkdZ luTG/uL5DA5CX+zBqhNQXzb4kHgLC8BYgU8UTkpkXaAnYjQPe1FhWcYumTNb+4/e7t+1 zgDHURRS5ubiBMCcavWDCI7yp+GirfxCtKb93L+s8vY/T1jsVkUx6q/P58MLxYyrgu7f LXM6z2oPZmN27jLWE6LTolv19nrTnI8IZKIeNEwXqEjXJpFqVA/INcQs/NQCSENJ5rOV i97Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=gtQ5F8jrQUF2N6tOvDi45fySOa/hLLTaZHUpfsjugYM=; b=Y9eq8BIOzzOKzZXhLFn4S0xtBzPLAYXlD6Rxv5J8aYitawxKGNNLSYfimF0Ki0a3wG q1m5+SJtwBmuJ4kDaSMzPzDicANGj+oQQMutB0bYACr5p2oX+5VJsKZIjkY65aGFK/qr IVlhl2JIR3SvZEc5jhEdCcAccNWGkNnlqaoe/uB3IaeJkyJiblYVt+Fo0cgabDPq2Wnz +wIM2Lw5oz4wt6sytzhD7P993mk7adT8E2SHd/xXMVIEwnDH7MHr5ko+bZCcTzm8l8jv oqJUnD7Q7tv3ECHZio+zLH3XuoitmdhyaFNTj9DqBaXDRX/rZCL6FtQobkuqFJXPxNoi PJbg== X-Gm-Message-State: AOAM530kfzOyHiXN0KALSNAGjPsD/Pz26UeVzYbsenZ1X+rkk/cJ9pAf O06AiSBQkWgDSlTAOQePRZg= X-Google-Smtp-Source: ABdhPJxXOnoYmMZSvTWVMQa/Pc8gm7SIzzg2/ZpYhi/Qi+1v+J+l4rnECRyHSHaMFpwLN9XZtXA3HQ== X-Received: by 2002:a05:6402:35cc:: with SMTP id z12mr3089352edc.45.1623657045666; Mon, 14 Jun 2021 00:50:45 -0700 (PDT) Received: from oberon.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id f6sm6536444eja.108.2021.06.14.00.50.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Jun 2021 00:50:45 -0700 (PDT) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v6 14/45] trace-cmd library: Extend the create file APIs to support different compression Date: Mon, 14 Jun 2021 10:49:58 +0300 Message-Id: <20210614075029.598048-15-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210614075029.598048-1-tz.stoyanov@gmail.com> References: <20210614075029.598048-1-tz.stoyanov@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org Added additional parameter for file compression to all trace-cmd library APIs for creating a new trace file. The caller could specify what compression algorithm should be used when creating a new trace file: tracecmd_create_file_latency tracecmd_create_init_file_glob tracecmd_create_init_fd_glob tracecmd_create_init_fd_msg tracecmd_create_init_file tracecmd_create_init_file_override tracecmd_create_init_fd The new parameter is of type string and can be one of: "any" - auto select the best available compression algorithm "none" - do not compress the trace file name - the name of the desired compression algorithms If a compression is used, trace file version 7 is selected, otherwise trace file version 6 is used. Signed-off-by: Tzvetomir Stoyanov (VMware) --- .../include/private/trace-cmd-private.h | 19 +++-- lib/trace-cmd/trace-output.c | 79 ++++++++++++------- tracecmd/trace-record.c | 12 ++- tracecmd/trace-restore.c | 4 +- tracecmd/trace-stream.c | 2 +- 5 files changed, 70 insertions(+), 46 deletions(-) diff --git a/lib/trace-cmd/include/private/trace-cmd-private.h b/lib/trace-cmd/include/private/trace-cmd-private.h index 624d0afb..ee73325c 100644 --- a/lib/trace-cmd/include/private/trace-cmd-private.h +++ b/lib/trace-cmd/include/private/trace-cmd-private.h @@ -271,20 +271,23 @@ struct tracecmd_event_list { struct tracecmd_option; struct tracecmd_msg_handle; -struct tracecmd_output *tracecmd_create_file_latency(const char *output_file, int cpus); +struct tracecmd_output *tracecmd_create_file_latency(const char *output_file, int cpus, + const char *compression); struct tracecmd_output * -tracecmd_create_init_file_glob(const char *output_file, - struct tracecmd_event_list *list); -struct tracecmd_output *tracecmd_create_init_fd(int fd); +tracecmd_create_init_file_glob(const char *output_file, struct tracecmd_event_list *list, + const char *compression); +struct tracecmd_output *tracecmd_create_init_fd(int fd, const char *compression); struct tracecmd_output * -tracecmd_create_init_fd_glob(int fd, struct tracecmd_event_list *list); +tracecmd_create_init_fd_glob(int fd, struct tracecmd_event_list *list, const char *compression); struct tracecmd_output * tracecmd_create_init_fd_msg(struct tracecmd_msg_handle *msg_handle, - struct tracecmd_event_list *list); -struct tracecmd_output *tracecmd_create_init_file(const char *output_file); + struct tracecmd_event_list *list, + const char *compression); +struct tracecmd_output *tracecmd_create_init_file(const char *output_file, const char *compression); struct tracecmd_output *tracecmd_create_init_file_override(const char *output_file, const char *tracing_dir, - const char *kallsyms); + const char *kallsyms, + const char *compression); struct tracecmd_option *tracecmd_add_option(struct tracecmd_output *handle, unsigned short id, int size, const void *data); diff --git a/lib/trace-cmd/trace-output.c b/lib/trace-cmd/trace-output.c index 82b3e5df..7c7d3d76 100644 --- a/lib/trace-cmd/trace-output.c +++ b/lib/trace-cmd/trace-output.c @@ -978,24 +978,41 @@ out_free: } static int select_file_version(struct tracecmd_output *handle, - struct tracecmd_input *ihandle) + struct tracecmd_input *ihandle, + const char *compression) { const char *cname = NULL; const char *cver = NULL; - if (ihandle) { - handle->file_version = tracecmd_get_in_file_version(ihandle); + if (compression) { /* If compression is specified - use it */ + if (!strcmp(compression, "any")) { + handle->compress = tracecmd_compress_alloc(NULL, NULL, handle->fd, + handle->pevent, handle->msg_handle); + if (!handle->compress) { + tracecmd_warning("No compression algorithms are not supported"); + return -1; + } + } else if (strcmp(compression, "none")) { + handle->compress = tracecmd_compress_alloc(compression, NULL, handle->fd, + handle->pevent, handle->msg_handle); + if (!handle->compress) { + tracecmd_warning("Compression algorithm %s is not supported", + compression); + return -1; + } + } + } else if (ihandle) { /* If there is input handler - inherit compression */ if (!tracecmd_get_file_compress_proto(ihandle, &cname, &cver)) { handle->compress = tracecmd_compress_alloc(cname, cver, handle->fd, handle->pevent, handle->msg_handle); if (!handle->compress) return -1; } - return 0; + } else { /* default - auto select the best available compression algorithm */ + handle->compress = tracecmd_compress_alloc(NULL, NULL, handle->fd, + handle->pevent, handle->msg_handle); } - handle->compress = tracecmd_compress_alloc(NULL, NULL, handle->fd, - handle->pevent, handle->msg_handle); if (handle->compress) handle->file_version = 7; else @@ -1028,7 +1045,8 @@ create_file_fd(int fd, struct tracecmd_input *ihandle, const char *tracing_dir, const char *kallsyms, struct tracecmd_event_list *list, - struct tracecmd_msg_handle *msg_handle) + struct tracecmd_msg_handle *msg_handle, + const char *compression) { struct tracecmd_output *handle; struct tep_handle *pevent; @@ -1049,7 +1067,7 @@ create_file_fd(int fd, struct tracecmd_input *ihandle, handle->msg_handle = msg_handle; - if (select_file_version(handle, ihandle)) + if (select_file_version(handle, ihandle, compression)) goto out_free; list_head_init(&handle->options); @@ -1128,7 +1146,8 @@ static struct tracecmd_output *create_file(const char *output_file, struct tracecmd_input *ihandle, const char *tracing_dir, const char *kallsyms, - struct tracecmd_event_list *list) + struct tracecmd_event_list *list, + const char *compression) { struct tracecmd_output *handle; int fd; @@ -1137,7 +1156,7 @@ static struct tracecmd_output *create_file(const char *output_file, if (fd < 0) return NULL; - handle = create_file_fd(fd, ihandle, tracing_dir, kallsyms, list, NULL); + handle = create_file_fd(fd, ihandle, tracing_dir, kallsyms, list, NULL, compression); if (!handle) { close(fd); unlink(output_file); @@ -1403,13 +1422,14 @@ int tracecmd_write_cmdlines(struct tracecmd_output *handle) return ret; } -struct tracecmd_output *tracecmd_create_file_latency(const char *output_file, int cpus) +struct tracecmd_output *tracecmd_create_file_latency(const char *output_file, int cpus, + const char *compression) { struct tracecmd_output *handle; char *path; int ret; - handle = create_file(output_file, NULL, NULL, NULL, &all_event_list); + handle = create_file(output_file, NULL, NULL, NULL, &all_event_list, compression); if (!handle) return NULL; @@ -1710,41 +1730,43 @@ struct tracecmd_output *tracecmd_get_output_handle_fd(int fd) return NULL; } -struct tracecmd_output *tracecmd_create_init_fd(int fd) +struct tracecmd_output *tracecmd_create_init_fd(int fd, const char *compression) { - return create_file_fd(fd, NULL, NULL, NULL, &all_event_list, NULL); + return create_file_fd(fd, NULL, NULL, NULL, &all_event_list, NULL, compression); } struct tracecmd_output * tracecmd_create_init_fd_msg(struct tracecmd_msg_handle *msg_handle, - struct tracecmd_event_list *list) + struct tracecmd_event_list *list, const char *compression) { - return create_file_fd(msg_handle->fd, NULL, NULL, NULL, list, msg_handle); + return create_file_fd(msg_handle->fd, NULL, NULL, NULL, + list, msg_handle, compression); } struct tracecmd_output * -tracecmd_create_init_fd_glob(int fd, struct tracecmd_event_list *list) +tracecmd_create_init_fd_glob(int fd, struct tracecmd_event_list *list, const char *compression) { - return create_file_fd(fd, NULL, NULL, NULL, list, NULL); + return create_file_fd(fd, NULL, NULL, NULL, list, NULL, compression); } struct tracecmd_output * -tracecmd_create_init_file_glob(const char *output_file, - struct tracecmd_event_list *list) +tracecmd_create_init_file_glob(const char *output_file, struct tracecmd_event_list *list, + const char *compression) { - return create_file(output_file, NULL, NULL, NULL, list); + return create_file(output_file, NULL, NULL, NULL, list, compression); } -struct tracecmd_output *tracecmd_create_init_file(const char *output_file) +struct tracecmd_output *tracecmd_create_init_file(const char *output_file, const char *compression) { - return create_file(output_file, NULL, NULL, NULL, &all_event_list); + return create_file(output_file, NULL, NULL, NULL, &all_event_list, compression); } struct tracecmd_output *tracecmd_create_init_file_override(const char *output_file, const char *tracing_dir, - const char *kallsyms) + const char *kallsyms, + const char *compression) { - return create_file(output_file, NULL, tracing_dir, kallsyms, &all_event_list); + return create_file(output_file, NULL, tracing_dir, kallsyms, &all_event_list, compression); } /** @@ -1756,12 +1778,13 @@ struct tracecmd_output *tracecmd_create_init_file_override(const char *output_fi * with the same characteristics (events and all) and returns * tracecmd_output handle to this new file. */ -struct tracecmd_output *tracecmd_copy(struct tracecmd_input *ihandle, - const char *file) +struct tracecmd_output *tracecmd_copy(struct tracecmd_input *ihandle, const char *file) { struct tracecmd_output *handle; + const char *compr_name = NULL; - handle = create_file(file, ihandle, NULL, NULL, &all_event_list); + tracecmd_get_file_compress_proto(ihandle, &compr_name, NULL); + handle = create_file(file, ihandle, NULL, NULL, &all_event_list, compr_name); if (!handle) return NULL; diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c index 60ee5fb3..29f84b7c 100644 --- a/tracecmd/trace-record.c +++ b/tracecmd/trace-record.c @@ -3700,7 +3700,7 @@ setup_connection(struct buffer_instance *instance, struct common_record_context /* Now create the handle through this socket */ if (msg_handle->version == V3_PROTOCOL) { - network_handle = tracecmd_create_init_fd_msg(msg_handle, listed_events); + network_handle = tracecmd_create_init_fd_msg(msg_handle, listed_events, NULL); if (!network_handle) goto error; tracecmd_set_quiet(network_handle, quiet); @@ -3718,8 +3718,7 @@ setup_connection(struct buffer_instance *instance, struct common_record_context if (ret) goto error; } else { - network_handle = tracecmd_create_init_fd_glob(msg_handle->fd, - listed_events); + network_handle = tracecmd_create_init_fd_glob(msg_handle->fd, listed_events, NULL); if (!network_handle) goto error; tracecmd_set_quiet(network_handle, quiet); @@ -4067,8 +4066,7 @@ static void setup_agent(struct buffer_instance *instance, { struct tracecmd_output *network_handle; - network_handle = tracecmd_create_init_fd_msg(instance->msg_handle, - listed_events); + network_handle = tracecmd_create_init_fd_msg(instance->msg_handle, listed_events, NULL); add_options(network_handle, ctx); tracecmd_write_cmdlines(network_handle); tracecmd_write_cpus(network_handle, instance->cpu_count); @@ -4460,7 +4458,7 @@ static void record_data(struct common_record_context *ctx) return; if (latency) { - handle = tracecmd_create_file_latency(ctx->output, local_cpu_count); + handle = tracecmd_create_file_latency(ctx->output, local_cpu_count, NULL); tracecmd_set_quiet(handle, quiet); } else { if (!local_cpu_count) @@ -4491,7 +4489,7 @@ static void record_data(struct common_record_context *ctx) touch_file(temp_files[i]); } - handle = tracecmd_create_init_file_glob(ctx->output, listed_events); + handle = tracecmd_create_init_file_glob(ctx->output, listed_events, NULL); if (!handle) die("Error creating output file"); tracecmd_set_quiet(handle, quiet); diff --git a/tracecmd/trace-restore.c b/tracecmd/trace-restore.c index 280a37f0..96b4fb5d 100644 --- a/tracecmd/trace-restore.c +++ b/tracecmd/trace-restore.c @@ -91,7 +91,7 @@ void trace_restore (int argc, char **argv) } handle = tracecmd_create_init_file_override(output, tracing_dir, - kallsyms); + kallsyms, NULL); if (!handle) die("Unabled to create output file %s", output); if (tracecmd_write_cmdlines(handle) < 0) @@ -128,7 +128,7 @@ void trace_restore (int argc, char **argv) handle = tracecmd_copy(ihandle, output); tracecmd_close(ihandle); } else - handle = tracecmd_create_init_file(output); + handle = tracecmd_create_init_file(output, NULL); if (!handle) die("error writing to %s", output); diff --git a/tracecmd/trace-stream.c b/tracecmd/trace-stream.c index b47b208c..317de1b2 100644 --- a/tracecmd/trace-stream.c +++ b/tracecmd/trace-stream.c @@ -43,7 +43,7 @@ trace_stream_init(struct buffer_instance *instance, int cpu, int fd, int cpus, tfd = fileno(fp); ofd = dup(tfd); - trace_output = tracecmd_create_init_fd(ofd); + trace_output = tracecmd_create_init_fd(ofd, NULL); if (!trace_output) { fclose(fp); return NULL;